I have been receiving database errors on occassion when I do the following;
- turn on editing in courses
- edit settings
- duplicate quizzes
I experience database errors in such cases in a random fashion. When I have error reading from database error I simply refresh the page and things work perfectly.
Apart from database error issues I can't import data from other courses and also I cannot delete my courses. The page goes unresponsive when I try to delete my courses. When I am trying to import data from another course then I have id missing or parameter missing error.
I am not a developer and I can't risk playing with server settings or PHP versions etc. I search the internet several times trying to figure out why the problem might be occuring but so far no luck.
Anybody who has experienced similar problems?