Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [1040] Too many connections in _registry_check_code() (line 3499 of /www/wwwroot/yiqi400.com/includes/bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000] [1040] Too many connections in _registry_check_code() (line 3499 of /www/wwwroot/yiqi400.com/includes/bootstrap.inc).