Database keep crushing after few hours.

Hello guys,

I have migrated another website to a VPS from shared hosting due to insufficient resources.

I have done this tens of times and for the 1st time, I face such problem.

I have set the server, the site, everything. Imported the database and everything works great. After 2-16 hours the database crashes. Shows the message cannot connect to database. Website, emails, phpmyadmin, ftp… everything is unaccessable when this happens.

The site is on WordPress, the wp-config is correct,…

Database keep crushing after few hours.