Ughh, need help.

Got this message on the webpage

DB Error 2002: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

Got this in the mysql error log, not sure why there is an issue with the mysql user

160818 12:41:08 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended

160818 12:46:32 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

160818 12:46:32 [Warning] Using unique option prefix key_buffer instead of key_buffer_size is deprecated and will be removed in a future release. Please use the full name instead.

160818 12:46:32 [ERROR] Fatal error: Can't change to run as user 'mysql' ;  Please check that the user exists!

160818 12:46:32 [ERROR] Aborting

160818 12:46:32 [Note] /usr/sbin/mysqld: Shutdown complete

160818 12:46:32 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended

Any assistance would be appreciated.

Thanks,
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Leo Dano