Hello, I’m new here but a long-time virtualmin user on Debian.
Yesterday I successfully migrated by server from Debian 7 to debian 8, no issue.
Today I tried to update from the distribution mysql to 5.6, the reason being that I want to install Vanilla forum on one of my website and they required 5.6 or higher.
Anyway the upgrade didn’t go perfectly well but in the end I have mysql 5.6 running, and virtualmin seeing them.
However my websites that use mysql do not work, they show a blank page and/or a 500 error. I’m on my way to reinstall virtualmin because I think I’ve tried everything I found on the web, however the solution might be (maybe?) simpler than I think.
Do you have an idea of what could be wrong?
thanks!
PS. my websites are down so a quick fix would be welcome 
(nothing major, game community sites etc but still I’d like to see them up asap)