After some updates our Webwork server were displaying different types errors that would come and go. It would be temporarily fixed by after restarting the Apache.
We decided to reinstall from scratch and use the backup files for courses and database.
The new server is running and is set up to run with LTI connection via Blackboard. Students only access webwork via the links posted on Blackboard. But the following error appears even though the new server uses the same settings for the previous server:
Your authentication failed. Please try again. Please speak with your instructor if you need help.
bsosnovski_MA119 uses an external authentication system. You've authenticated through that system, but aren't allowed to log in to this course.