[resolved] Mysql : Connection failed: SQLSTATE[HY000]

[kurgans]

I feel my English, I speak only Spanish and is very difficult for my help.
Google translate does not translate and what may cause a more serious error in your system

I had that problem and same error message was caused by rupture of maia database.
If it can not be your problem like mine.

You can test if this is the error renaming /var/lib/mysql/maia to /var/lib/mysql/maia1

Restart mysql

If that's not the error try the rest of their databases

I hope to help you in your problem