Oops error when on System Health

[Muneef 0]

I unbale to load the system health page since i am getting error message pleae help me how can i fix this . 

Oops!

Something went wrong and we couldn't process your request.

[wsa 87]

go to Configuration > System Settings > Other and enable Display Errors. Then open up the page where it gives you a white / error page and tells you the error

[Muneef 0]

Error: Whoops\Exception\ErrorException: Allowed memory size of 33554432 bytes exhausted (tried to allocate 20480 bytes) in /home/xxx/xxxxx//vendor/whmcs/whmcs-foundation/lib/Cron/Task/TicketEscalations.php:0 Stack trace: #0 /home/xxx/xxxxx/vendor/whmcs/whmcs-foundation/lib/Utility/Error/Run.php(0): WHMCS\Utility\Error\Run->handleError(1, 'Allowed memory ...', '/home/xxxx/...', 0) #1 [internal function]: WHMCS\Utility\Error\Run->handleShutdown() #2 {main}

 

this is the error message 

[web2008 10]

https://help.whmcs.com/m/troubleshooting/l/756072-troubleshooting-an-allowed-memory-size-exhausted-error