HELP – database error is causing problems with admin site

I’m getting the following Mailpoet error message from WordPress, ever since I moved from Cloud based hosting to c-panel. I don’t think it’s fatal but my admin site is not always making connections to the server and, as a result, the Physical Memory and I/O Memory are shooting up and hitting the limits of my hosting company. I‘ve tried deleting and reinstalling the Mailpoet plugin but I wonder if I need to delete the database too and trying again from scratch. Here is the error message and I do hope that someone can help me:

An error of type E_ERROR was caused in line 2 of the file /home/gr1p0y3dqxmn/public_html/wp-content/plugins/mailpoet/vendor-prefixed/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php. Error message: Uncaught PDOException: SQLSTATE[HY000]: General error: 2013 Lost connection to MySQL server during query in /home/gr1p0y3dqxmn/public_html/wp-content/plugins/mailpoet/vendor-prefixed/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:2
Stack trace:
#0 /home/gr1p0y3dqxmn/public_html/wp-content/plugins/mailpoet/vendor-prefixed/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(2): PDO->query('SELECT t0.name ...')
#1 /home/gr1p0y3dqxmn/public_html/wp-content/plugins/mailpoet/vendor-prefixed/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(2): MailPoetVendor\Doctrine\DBAL\Driver\PDOConnection->query('SELECT t0.name ...')
#2 /home/gr1p0y3dqxmn/public_html/wp-content/plugins/mailpoet/vendor-prefixed/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php(2): MailPoetVendor\Doctrine\DBAL\Connection->executeQuery('SELECT t0.name ...', Array, Array)
#3 /home/gr1p0y3dqxmn/public_html/wp-content/plugins/mailpoet/vendor-prefixed/doctrine/orm/lib/Doctrine/ORM/EntityRepository.php(2): MailPoetVen

• This topic was modified 4 years, 3 months ago by Yui.
• This topic was modified 4 years, 3 months ago by Yui. Reason: please use CODE button for code formatting

The page I need help with: [log in to see the link]