Warning: mysqli::__construct(): Error while reading greeting packet. PID=35985 in /home/hesu/it.hesu.co.tz/db_connection.php on line 9

Fatal error: Uncaught mysqli_sql_exception: MySQL server has gone away in /home/hesu/it.hesu.co.tz/db_connection.php:9 Stack trace: #0 /home/hesu/it.hesu.co.tz/db_connection.php(9): mysqli->__construct('localhost', 'hesu_ssa_db', Object(SensitiveParameterValue), 'hesu_id_card_ge...') #1 /home/hesu/it.hesu.co.tz/cards_preview.php(6): include('/home/hesu/it.h...') #2 {main} thrown in /home/hesu/it.hesu.co.tz/db_connection.php on line 9