mysqli_error()

Are you serious? NEVER delete anything you do not understand!
I hope everybody understands you kidding

One can try "yum install mariadb-server" and see what happens. Your database is affected or deleted by / var / lib / mysql, so we hope you didn't miss anything. Anyway, it was a big mistake and I hope you get your backup.

 /etc/systemd/system/mariadb.service.d
           `-migrated-from-my.cnf-settings.conf
   Active: activating (start) since Thu 2020-11-12 02:42:09 EST; 173ms ago
     Docs: man:mariadbd(
           https://mariadb.com/kb/en/library/systemd/
  Process: 17985 ExecStartPre=/bin/sh -c [ ! -e /usr/bin/galera_recovery ] && VAR= ||   VAR=`cd /usr/bin/..; /usr/bin/galera_recovery`; [ $? -eq 0 ]   && systemctl set-environment _WSREP_START_POSITION=$VAR || exit 1 (code=exited, status=0/SUCCESS)
  Process: 17982 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS)
 Main PID: 17996 ((mariadbd))
   CGroup: /system.slice/mariadb.service
           `-17996 (mar

/etc/systemd/system/mariadb.service.d
           `-migrated-from-my.cnf-settings.conf
   Active: activating (start) since Thu 2020-11-12 02:42:09 EST; 173ms ago
     Docs: man:mariadbd(
           https://mariadb.com/kb/en/library/systemd/
  Process: 17985 ExecStartPre=/bin/sh -c [ ! -e /usr/bin/galera_recovery ] && VAR= ||   VAR=`cd /usr/bin/..; /usr/bin/galera_recovery`; [ $? -eq 0 ]   && systemctl set-environment _WSREP_START_POSITION=$VAR || exit 1 (code=exited, status=0/SUCCESS)
  Process: 17982 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS)
 Main PID: 17996 ((mariadbd))
   CGroup: /system.slice/mariadb.service
           `-17996 (mar

And what do you think we can see there?

And what do you think we can see there?

LOL 
Someone who doesn't wrap code in tags, is the only error that I can spot. 

@cynique do not advise if you do not understand what are you talking about!

Igor S.
You are normally one of the better ones here - you're beginning to sound like one of the other members of the Team.
I was actually complimenting you, on your reply.