If your VPS is running CentOS and you use Control Web Panel (CWP), you may get this error at one time or the other: 502 Bad Gateway cwpsrv

For me, I got the error when I Started CWP service on the server but CWP admin panel started giving “502 Bad Gateway cwpsrv” error.


There are two ways you can solve the 502 Bad Gateway Cwpsrv error. In most cases, any 502 Bad Gateway error can be solved by running this command:

sh /scripts/restart_cwpsrv

If running the above command does not solve your problem, here’s the second option:

First off, you should check the phpfpm service to confirm that it is running. Type this command through SSH:

systemctl status cwp-phpfpm

If the service is not running and cannot start, you have to find the User that is producing the error. To do so, check this file /usr/local/cwp/php71/var/log/php-fpm.log

tail /usr/local/cwp/php71/var/log/php-fpm.log

You will see the name of User has an error (eg. stetho.conf).

Delete the file stetho.conf from /usr/local/cwp/php71/etc/php-fpm.d/users/stetho.conf   by running this command:

rm -f /usr/local/cwp/php71/etc/php-fpm.d/users/stetho.conf

After this, run the following command to start Phpfpm

systemctl start cwp-phpfpm

From here, the 502 Bad Gateway cwpsrv should have been solved.

By anup

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