Blank screens and stuck modules are usually due to caching errors, so the solution is to advise the learner to clear their browser cache and reset the module as an administrator.
How to reset browser cache
The following links can be sent to learners, for guidance on how to clear cache in various web browsers:
How to reset a module in user history
To reset the module as an administrator, go to Users > Manage users then search for the learner using the filters and click on the history icon:
Expand the course the learner is stuck on by clicking on the plus icon on the left of the course title, click on the edit (pencil) icon for the stuck module (it should be in process):
Click on the status drop-down to update the status from in process to not started, then clear the score and click on the save icon.
The learner will now be able to re-attempt the module upon clearing their browser cache.
Error messages are often localised (i.e. due to PC or browser settings, content blockers) and should be passed onto your local IT services initially, to see if they can identify the cause.
If they are unable to do so please provide a screenshot of the error message alongside the learner’s PC specifications to Me Learning’s Helpdesk (firstname.lastname@example.org), for further investigation.