Checked the error in the web application encountered by the user, as per checking, the web application is slow, sought assistance with Omar again as restarting the httpd service takes effect for short time only, the web application is fast but after a while, it slows again. Omar checked the server again, as per checking, the usage of CPU and memory is spiking, thus he restarted the server, when the server is up again, checked the web application, as per checking, the web application is now fast and responsive, and the error encountered is not encountered anymore. Though the error is not encountered anymore, applied the sessions in PAT for production for the solution. Modified the env file to change the session drive from the file into the database, this is to save the sessions into the database instead of the file that will be saved in the server. Deployed the changes in the server then execute the clear cache command. After the execution, tested the web application, as per checking, all is ok for now but this is still for monitoring.