Unable to Access CWP Panel : 500 Error

Hi All,

We are unable to access the CWP panel suddenly and its showing 500 error in browser. While checking the logs, we are able to locate the following error.

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[error] 918#0: *33 FastCGI sent in stderr: "PHP message: PHP Fatal error:  <br>The encoded file <b>/usr/local/cwpsrv/htdocs/admin/index.php</b> has expired. in Unknown on line 0" while reading response header from upstream, client: x.x.x.x, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/usr/local/cwp/php71/var/sockets/cwpsrv.sock:", host:
This is an old server with CentOS 7 OS and was running fine. Any possible reasons for this error and how to fix this?

Thanks in advance.

You need to update your CWP version. Older files that are IonCube encoded will expire and throw these kinds of errors.

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yum -y update
yum clean all
yum check-update
yum update
sh /scripts/update_cwp