Internal Error Message in PHP logs

We went to the payment page and it was blank. I opened the logs and found this error message.

[Thu Oct 17 16:10:04.344729 2019] [proxy_fcgi:error] [pid 11168:tid 140424030979840] (20014)Internal error (specific information not available): [client 96.84.212.206:51711] AH01075: Error dispatching request to : (passing brigade to output filters), referer: https://www.wmpllc.org/ojs/index.php/jem/manager/payments

Any idea on how to solve this? OJS 2.4.8.5 Thanks.