Please add the following MySQL Variables in settings so that we can manage and configure the the Database to get rid of errors like "General error: 2006 MySQL server has gone away" and so on.

connecttimeout 10
delayedinserttimeout 300
havestatementtimeout YES
innodbflushlogattimeout 1
innodblockwaittimeout 300
innodbrollbackontimeout OFF
interactivetimeout 180
lockwaittimeout 31536000
netreadtimeout 30
netwritetimeout 60
rplstopslavetimeout 31536000
slavenettimeout 60
waittimeout 300