Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [2002] Connection timed out in _domain_bootstrap() (line 112 of /var/www/amgee/releases/2019.08.08/sites/all/modules/domain/domain.bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000] [2002] Connection timed out in lock_may_be_available() (line 167 of /var/www/amgee/releases/2019.08.08/includes/lock.inc).