diff --git a/app/controllers/concerns/lti.rb b/app/controllers/concerns/lti.rb
index 7cb35046..b19f885c 100644
--- a/app/controllers/concerns/lti.rb
+++ b/app/controllers/concerns/lti.rb
@@ -145,7 +145,7 @@ module Lti
     if session[:consumer_id]
       lti_parameter = LtiParameter.where(consumers_id: session[:consumer_id],
                                          external_users_id: user_id,
-                                         exercises_id: exercise_id).first
+                                         exercises_id: exercise_id).last
 
       consumer = Consumer.find_by(id: session[:consumer_id])
       provider = build_tool_provider(consumer: consumer, parameters: lti_parameter.lti_parameters)
diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index 8caed7fd..2bb18096 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -264,8 +264,8 @@ class ExercisesController < ApplicationController
   end
 
   def set_course_token
-    lti_parameters = LtiParameter.find_by(external_users_id: current_user.id,
-                                          exercises_id: @exercise.id)
+    lti_parameters = LtiParameter.where(external_users_id: current_user.id,
+                                          exercises_id: @exercise.id).last
     if lti_parameters
       lti_json = lti_parameters.lti_parameters["launch_presentation_return_url"]
 
@@ -337,7 +337,7 @@ class ExercisesController < ApplicationController
 
     lti_parameter = LtiParameter.where(consumers_id: session[:consumer_id],
                                        external_users_id: @submission.user_id,
-                                       exercises_id: @submission.exercise_id).first
+                                       exercises_id: @submission.exercise_id).last
 
     path = lti_return_path(consumer_id: session[:consumer_id],
                            submission_id: @submission.id,
diff --git a/app/helpers/lti_helper.rb b/app/helpers/lti_helper.rb
index ff2d6354..de7624c7 100644
--- a/app/helpers/lti_helper.rb
+++ b/app/helpers/lti_helper.rb
@@ -6,7 +6,7 @@ module LtiHelper
 
     lti_parameters = LtiParameter.where(consumers_id: consumer_id,
                                        external_users_id: external_user_id,
-                                       exercises_id: exercise_id).lis_outcome_service_url?
+                                       exercises_id: exercise_id).lis_outcome_service_url?.last
     !lti_parameters.nil? && lti_parameters.present?
   end
 end