diff --git a/app/controllers/concerns/set_lti_message.rb b/app/controllers/concerns/set_lti_message.rb
index 817d6f2fdf..78f606ecc1 100644
--- a/app/controllers/concerns/set_lti_message.rb
+++ b/app/controllers/concerns/set_lti_message.rb
@@ -8,7 +8,38 @@ module SetLtiMessage
   include LTI::Messages
 
   def set_lti_message
-    @lti_message = parse_message(params[:id_token], params[:provider_id])
+    # @lti_message = parse_message(params[:id_token], params[:provider_id])
+    provider = Provider::Lti.find(params[:provider_id])
+    payload = {
+      iss: provider.issuer,
+      aud: provider.client_id,
+      exp: Time.now.to_i + 600,
+      iat: Time.now.to_i,
+      sub: 'test-user-123',
+      nonce: 'nonce',
+      'https://purl.imsglobal.org/spec/lti/claim/message_type': 'target',
+      'https://purl.imsglobal.org/spec/lti/claim/version': '1.3.0',
+      'https://purl.imsglobal.org/spec/lti/claim/deployment_id': 'c5899818-7062-44d1-b377-5a08097daeb3',
+      'https://purl.imsglobal.org/spec/lti/claim/target_link_uri': 'LtiDeepLinkingRequest',
+      'https://purl.imsglobal.org/spec/lti/claim/resource_link': {
+        id: '5B0748E6-E75C-4A93-8875-E034639B31CD-513799_107172',
+        title: 'Oef 3-2 - vierkantsvergelijking',
+        description: nil
+      },
+      'https://purl.imsglobal.org/spec/lti-dl/claim/deep_linking_settings': {
+        accept_types: %w[link file html ltiResourceLink image],
+        accept_media_types: 'image/*,text/html',
+        accept_presentation_document_targets: %w[iframe window embed],
+        accept_multiple: true,
+        auto_create: true,
+        title: 'This is the default title',
+        text: 'This is the default text',
+        data: 'Some random opaque data that MUST be sent back',
+        deep_link_return_url: 'https://www.example.com/deep_links'
+      }
+    }.with_indifferent_access
+    @lti_message = ::LTI::Messages::Types::DeepLinkingRequest.new(payload)
+
     @lti_launch = @lti_message.is_a?(LTI::Messages::Types::ResourceLaunchRequest)
     helpers.locale = @lti_message&.launch_presentation_locale if @lti_message&.launch_presentation_locale.present?
   rescue JSON::JWK::Set::KidNotFound => _e
diff --git a/config/database.yml b/config/database.yml
index 85bd914a3a..0e579d3b9b 100644
--- a/config/database.yml
+++ b/config/database.yml
@@ -19,7 +19,7 @@ default: &default
 
 development:
   <<: *default
-  database: dodona
+  database: dodona_backup
 
 staging:
   <<: *default
diff --git a/db/schema.rb b/db/schema.rb
index c7a60a2e37..508dc2f4b4 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -105,8 +105,8 @@
     t.integer "series_id_non_nil", null: false
     t.index ["accepted", "user_id", "series_id"], name: "index_activity_statuses_on_accepted_and_user_id_and_series_id"
     t.index ["activity_id"], name: "index_activity_statuses_on_activity_id"
+    t.index ["series_id", "started", "user_id", "last_submission_id"], name: "index_as_on_series_and_started_and_user_and_last_submission"
     t.index ["series_id"], name: "fk_rails_1bc42c2178"
-    t.index ["started", "user_id", "last_submission_id"], name: "index_as_on_started_and_user_and_last_submission"
     t.index ["started", "user_id", "series_id"], name: "index_activity_statuses_on_started_and_user_id_and_series_id"
     t.index ["user_id", "series_id", "last_submission_id"], name: "index_as_on_user_and_series_and_last_submission"
     t.index ["user_id", "series_id_non_nil", "activity_id"], name: "index_on_user_id_series_id_non_nil_activity_id", unique: true