SQLSTATE[HY000] [1040] Too many connections
On a shared hosting, "unlimited" means other users are unrestricted with their
resource using. Means they can eat up whole pool, while your consumption
remains modest
This is a limit of database's configuration. If you have permission to edit
the configuration file of your database service, you can change max_connections
value.
You can try running this SQL query (take care about this value!)
SET GLOBAL max_connections = 512;
and this to get current value of all variables:
SHOW VARIABLES;
or (for specific variable):
SHOW GLOBAL VARIABLES LIKE '%max_connections%'