I received an mail from my host saying the following:
We are still looking into the issue. However, it appears that that there is an issue with the db username receiving too many queries. It sounds like the students attempting to login may be putting you over the limit.
We will continue to look into this issue.
Would someone please translate this and tell me what I can do to fix it? I only have 30-31 student online at any given time. I can't imagine it is us.