Unable To Access FreePBX and SSH

Getting a connection timeout error on the front end.

When I use SSH I get the following error.

PDOException: SQLSTATE[HY000] [2002] No such file or directory in file /var/www/html/admin/libraries/BMO/Database.class.php on line 144
Stack trace:
  1. Exception->() /var/www/html/admin/libraries/utility.functions.php:120
  2. die_freepbx() /var/www/html/admin/libraries/BMO/Database.class.php:149
  3. PDOException->() /var/www/html/admin/libraries/BMO/Database.class.php:144
  4. PDO->__construct() /var/www/html/admin/libraries/BMO/Database.class.php:144
  5. FreePBX\Database->__construct() /var/www/html/admin/libraries/BMO/FreePBX.class.php:71
  6. FreePBX->__construct() /var/www/html/admin/bootstrap.php:144
  7. require_once() /etc/freepbx.conf:11
  8. include_once() /var/lib/asterisk/bin/fwconsole:12 

Does anyone have advice on how to resolve this problem.
Kind Regards