Export HTML and PDF error

I installed the Github version of dradis 3.0.0 today but the HTML and PDF export modules are giving errors. I already checked this topic: Export CSV/HTML/PDF error but I seem to have different errors.

My HTML export error:

Started GET "/export/html/" for 10.10.10.108 at 2016-02-26 13:08:12 +0100
Processing by Dradis::Plugins::HtmlExport::BaseController#index as HTML
Report title: 3.0.0
  ^[[1m^[[36mDradis::Core::Category Load (0.2ms)^[[0m  ^[[1mSELECT  "dradis_categories".* FROM "dradis_categories"  WHERE "dradis_categories"."name" = 'Report category' LIMIT 1^[[0m
  ^[[1m^[[35m (0.2ms)^[[0m  SELECT COUNT(*) FROM "dradis_notes"  WHERE "dradis_notes"."category_id" = 4
  ^[[1m^[[36mCACHE (0.0ms)^[[0m  ^[[1mSELECT COUNT(*) FROM "dradis_notes"  WHERE "dradis_notes"."category_id" = 4^[[0m
Found 0 notes assigned to the reporting category.
  ^[[1m^[[35mDradis::Core::Category Load (0.2ms)^[[0m  SELECT  "dradis_categories".* FROM "dradis_categories"  WHERE "dradis_categories"."name" = 'Issue description' LIMIT 1
  ^[[1m^[[36mDradis::Core::Issue Load (0.2ms)^[[0m  ^[[1mSELECT "dradis_notes".* FROM "dradis_notes"  WHERE "dradis_notes"."category_id" = 2^[[0m
  ^[[1m^[[35m (0.2ms)^[[0m  SELECT COUNT(*) FROM "dradis_notes"  WHERE "dradis_notes"."category_id" = 2
  ^[[1m^[[36mCACHE (0.0ms)^[[0m  ^[[1mSELECT COUNT(*) FROM "dradis_notes"  WHERE "dradis_notes"."category_id" = 2^[[0m
Found 1 issues affecting 0 nodes
Completed 500 Internal Server Error in 11ms

Errno::EISDIR (Is a directory @ io_fread - /opt/dradisframework/templates/reports/html_export/html_export):
  /opt/dradis-html_export/lib/dradis/plugins/html_export/exporter.rb:50:in `read'
  /opt/dradis-html_export/lib/dradis/plugins/html_export/exporter.rb:50:in `export'
  /opt/dradis-html_export/app/controllers/dradis/plugins/html_export/base_controller.rb:19:in `index'
  actionpack (4.1.9) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
  actionpack (4.1.9) lib/abstract_controller/base.rb:189:in `process_action'
  actionpack (4.1.9) lib/action_controller/metal/rendering.rb:10:in `process_action'
  actionpack (4.1.9) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
  activesupport (4.1.9) lib/active_support/callbacks.rb:113:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:113:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:229:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:229:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:229:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:229:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:86:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:86:in `run_callbacks'
  actionpack (4.1.9) lib/abstract_controller/callbacks.rb:19:in `process_action'
  actionpack (4.1.9) lib/action_controller/metal/rescue.rb:29:in `process_action'
  actionpack (4.1.9) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
  activesupport (4.1.9) lib/active_support/notifications.rb:159:in `block in instrument'
  activesupport (4.1.9) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (4.1.9) lib/active_support/notifications.rb:159:in `instrument'
  actionpack (4.1.9) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
  actionpack (4.1.9) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
  activerecord (4.1.9) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
  actionpack (4.1.9) lib/abstract_controller/base.rb:136:in `process'
  actionview (4.1.9) lib/action_view/rendering.rb:30:in `process'
  actionpack (4.1.9) lib/action_controller/metal.rb:196:in `dispatch'
  actionpack (4.1.9) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
  actionpack (4.1.9) lib/action_controller/metal.rb:232:in `block in action'
  actionpack (4.1.9) lib/action_dispatch/routing/route_set.rb:82:in `call'
  actionpack (4.1.9) lib/action_dispatch/routing/route_set.rb:82:in `dispatch'
  actionpack (4.1.9) lib/action_dispatch/routing/route_set.rb:50:in `call'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:73:in `block in call'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:59:in `each'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:59:in `call'
  actionpack (4.1.9) lib/action_dispatch/routing/route_set.rb:685:in `call'
  railties (4.1.9) lib/rails/engine.rb:514:in `call'
  railties (4.1.9) lib/rails/railtie.rb:194:in `public_send'
  railties (4.1.9) lib/rails/railtie.rb:194:in `method_missing'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:73:in `block in call'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:59:in `each'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:59:in `call'
  actionpack (4.1.9) lib/action_dispatch/routing/route_set.rb:685:in `call'
  warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
  warden (1.2.3) lib/warden/manager.rb:34:in `catch'
  warden (1.2.3) lib/warden/manager.rb:34:in `call'
  rack (1.5.2) lib/rack/etag.rb:23:in `call'
  rack (1.5.2) lib/rack/conditionalget.rb:25:in `call'
  rack (1.5.2) lib/rack/head.rb:11:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/flash.rb:254:in `call'
  rack (1.5.2) lib/rack/session/abstract/id.rb:225:in `context'
  rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/cookies.rb:562:in `call'
  activerecord (4.1.9) lib/active_record/query_cache.rb:36:in `call'
  activerecord (4.1.9) lib/active_record/connection_adapters/abstract/connection_pool.rb:621:in `call'
  activerecord (4.1.9) lib/active_record/migration.rb:380:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:82:in `run_callbacks'
  actionpack (4.1.9) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/reloader.rb:73:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.1.9) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.1.9) lib/rails/rack/logger.rb:20:in `block in call'
  activesupport (4.1.9) lib/active_support/tagged_logging.rb:68:in `block in tagged'
  activesupport (4.1.9) lib/active_support/tagged_logging.rb:26:in `tagged'
  activesupport (4.1.9) lib/active_support/tagged_logging.rb:68:in `tagged'
  railties (4.1.9) lib/rails/rack/logger.rb:20:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'
  rack (1.5.2) lib/rack/runtime.rb:17:in `call'
  activesupport (4.1.9) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call'
  rack (1.5.2) lib/rack/lock.rb:17:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/static.rb:84:in `call'
  rack (1.5.2) lib/rack/sendfile.rb:112:in `call'
  railties (4.1.9) lib/rails/engine.rb:514:in `call'
  railties (4.1.9) lib/rails/application.rb:144:in `call'
  rack (1.5.2) lib/rack/lock.rb:17:in `call'
  rack (1.5.2) lib/rack/content_length.rb:14:in `call'
  rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service'
  /usr/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service'
  /usr/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run'
  /usr/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'

I have tried looking for the call to the export function to see if I can adjust the path but I could not find it in the main code or in the code of the html_export plugin.

The PDF error

Started GET "/export/pdf/" for 10.10.10.108 at 2016-02-26 13:00:49 +0100
Processing by Dradis::Plugins::PdfExport::BaseController#index as HTML
  ^[[1m^[[35mDradis::Core::Category Load (0.2ms)^[[0m  SELECT  "dradis_categories".* FROM "dradis_categories"  WHERE "dradis_categories"."name" = 'Issue description' LIMIT 1
  ^[[1m^[[36m (0.1ms)^[[0m  ^[[1mSELECT COUNT(*) FROM "dradis_notes"  WHERE "dradis_notes"."category_id" = 2^[[0m
  ^[[1m^[[35mDradis::Core::Issue Load (0.2ms)^[[0m  SELECT  "dradis_notes".* FROM "dradis_notes"  WHERE "dradis_notes"."category_id" = 2  ORDER BY "dradis_notes"."id" ASC LIMIT 1
  ^[[1m^[[36mDradis::Core::Issue Load (0.2ms)^[[0m  ^[[1mSELECT "dradis_notes".* FROM "dradis_notes"  WHERE "dradis_notes"."category_id" = 2^[[0m
Completed 500 Internal Server Error in 5ms

NoMethodError (undefined method `render' for "Title,Body\nKwetsbaarheid 1,Dit is de uitleg.\n":String):
  /opt/dradis-pdf_export/app/controllers/dradis/plugins/pdf_export/base_controller.rb:21:in `index'
  actionpack (4.1.9) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
  actionpack (4.1.9) lib/abstract_controller/base.rb:189:in `process_action'
  actionpack (4.1.9) lib/action_controller/metal/rendering.rb:10:in `process_action'
  actionpack (4.1.9) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
  activesupport (4.1.9) lib/active_support/callbacks.rb:113:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:113:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:229:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:229:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:229:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:229:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:166:in `block in halting'
  activesupport (4.1.9) lib/active_support/callbacks.rb:86:in `call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:86:in `run_callbacks'
  actionpack (4.1.9) lib/abstract_controller/callbacks.rb:19:in `process_action'
  actionpack (4.1.9) lib/action_controller/metal/rescue.rb:29:in `process_action'
  actionpack (4.1.9) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
  activesupport (4.1.9) lib/active_support/notifications.rb:159:in `block in instrument'
  activesupport (4.1.9) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (4.1.9) lib/active_support/notifications.rb:159:in `instrument'
  actionpack (4.1.9) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
  actionpack (4.1.9) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
  activerecord (4.1.9) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
  actionpack (4.1.9) lib/abstract_controller/base.rb:136:in `process'
  actionview (4.1.9) lib/action_view/rendering.rb:30:in `process'
  actionpack (4.1.9) lib/action_controller/metal.rb:196:in `dispatch'
  actionpack (4.1.9) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
  actionpack (4.1.9) lib/action_controller/metal.rb:232:in `block in action'
  actionpack (4.1.9) lib/action_dispatch/routing/route_set.rb:82:in `call'
  actionpack (4.1.9) lib/action_dispatch/routing/route_set.rb:82:in `dispatch'
  actionpack (4.1.9) lib/action_dispatch/routing/route_set.rb:50:in `call'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:73:in `block in call'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:59:in `each'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:59:in `call'
  actionpack (4.1.9) lib/action_dispatch/routing/route_set.rb:685:in `call'
  railties (4.1.9) lib/rails/engine.rb:514:in `call'
  railties (4.1.9) lib/rails/railtie.rb:194:in `public_send'
  railties (4.1.9) lib/rails/railtie.rb:194:in `method_missing'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:73:in `block in call'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:59:in `each'
  actionpack (4.1.9) lib/action_dispatch/journey/router.rb:59:in `call'
  actionpack (4.1.9) lib/action_dispatch/routing/route_set.rb:685:in `call'
  warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
  warden (1.2.3) lib/warden/manager.rb:34:in `catch'
  warden (1.2.3) lib/warden/manager.rb:34:in `call'
  rack (1.5.2) lib/rack/etag.rb:23:in `call'
  rack (1.5.2) lib/rack/conditionalget.rb:25:in `call'
  rack (1.5.2) lib/rack/head.rb:11:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/flash.rb:254:in `call'
  rack (1.5.2) lib/rack/session/abstract/id.rb:225:in `context'
  rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/cookies.rb:562:in `call'
  activerecord (4.1.9) lib/active_record/query_cache.rb:36:in `call'
  activerecord (4.1.9) lib/active_record/connection_adapters/abstract/connection_pool.rb:621:in `call'
  activerecord (4.1.9) lib/active_record/migration.rb:380:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
  activesupport (4.1.9) lib/active_support/callbacks.rb:82:in `run_callbacks'
  actionpack (4.1.9) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/reloader.rb:73:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.1.9) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.1.9) lib/rails/rack/logger.rb:20:in `block in call'
  activesupport (4.1.9) lib/active_support/tagged_logging.rb:68:in `block in tagged'
  activesupport (4.1.9) lib/active_support/tagged_logging.rb:26:in `tagged'
  activesupport (4.1.9) lib/active_support/tagged_logging.rb:68:in `tagged'
  railties (4.1.9) lib/rails/rack/logger.rb:20:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'
  rack (1.5.2) lib/rack/runtime.rb:17:in `call'
  activesupport (4.1.9) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call'
  rack (1.5.2) lib/rack/lock.rb:17:in `call'
  actionpack (4.1.9) lib/action_dispatch/middleware/static.rb:84:in `call'
  rack (1.5.2) lib/rack/sendfile.rb:112:in `call'
  railties (4.1.9) lib/rails/engine.rb:514:in `call'
  railties (4.1.9) lib/rails/application.rb:144:in `call'
  rack (1.5.2) lib/rack/lock.rb:17:in `call'
  rack (1.5.2) lib/rack/content_length.rb:14:in `call'
  rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service'
  /usr/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service'
  /usr/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run'
  /usr/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'

I already commented L51 in the PDF exporter plugin which solved that issue but returned me this error instead.