Internal Server Error 500

[Sat May 20 06:50:06.563435 2017] [perl:error] [pid 28041] [client 68.180.230.29:56296] failed to resolve handler `Entry::Main': DBI connect('redboard:localhost;mysql_local_infile=1;mysql_multi_results=1','redboard',...) failed: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2 "No such file or directory") at /var/www/redboard.com.ua/lib/DB.pm line 16.\nBEGIN failed--compilation aborted at /var/www/redboard.com.ua/lib/DB.pm line 18.\nCompilation failed in require at /var/www/redboard.com.ua/lib/Core.pm line 6.\nBEGIN failed--compilation aborted at /var/www/redboard.com.ua/lib/Core.pm line 6.\nCompilation failed in require at /var/www/redboard.com.ua/lib/Core/Template.pm line 5.\nBEGIN failed--compilation aborted at /var/www/redboard.com.ua/lib/Core/Template.pm line 5.\nCompilation failed in require at /var/www/redboard.com.ua/lib/Entry/Main.pm line 7.\nBEGIN failed--compilation aborted at /var/www/redboard.com.ua/lib/Entry/Main.pm line 7.\nCompilation failed in require at (eval 25) line 2.\n

[Wed May 24 01:08:51.979109 2017] [perl:error] [pid 12868] [client 217.182.132.14:53992] failed to resolve handler `Entry::Main': DBI connect('redboard:localhost;mysql_local_infile=1;mysql_multi_results=1','redboard',...) failed:

[Wed May 24 01:19:04.945034 2017] [perl:error] [pid 12869] [client 54.92.175.204:54152] failed to resolve handler `Entry::Main': DBI connect('redboard:localhost;mysql_local_infile=1;mysql_multi_results=1','redboard',...) failed:

redboard.com.ua