502 Gateway error. Plesk Onyx 17.8.11

[n317]

I'm running Plesk Onyx 17.8.11 Update #24 on Ubuntu 16.04.5 LTS‬ and I'm currently getting a 502 gateway error when trying to access my website, I think the below error has something to do with it. The Apache.php file does appear to be corrupted as it is full of random characters.

Details: [2018-10-02 11:18:50.311] ERR [util_exec] proc_close() failed ['/opt/psa/admin/bin/apache_control_adapter' '--restart' '--restart-interval' '0' '--http-port' '7080' '--https-port' '7081'] with exit code [255]
[2018-10-02 11:18:50.944] ERR [panel] Apache config (15384789850.57971700) generation failed: Template_Exception: Can not restart web server:
file: /opt/psa/admin/plib/Service/Driver/Web/Server/Apache.php
line: 109
code: 0
Can not restart web server:

Is there a way I could get a copy of the Apache.php from somewhere?

 

[IgorG]

This looks like a known problem. Have you checked KB -
Web server reconfiguration fails on Debian/Ubuntu with Plesk: Curl failed: Timeout was reached

 

[n317]

Thanks for taking the time to look. Unfortunately that KB did not help. In the end I had to spin down the server and start a new instance. It was mission critical.

 

[Anton Keller]

I may have the same problem and cannot find the fix for it.

 

[Bitpalast]

Have you checked the Apache error log file? It normally mentions the exact reason why Apache does not want to start.

 

[WebHostingAce]

You should stop the NGINX via Panel. This will re-write the configuration files Apache as the Web Server.

Stop the NGINX via Plesk Panel | Tools & Settings > Service Management.

Then try to restart Apache,

#service apache2 restart

Then check the error log,

# vi /var/log/apache2/error.log

Error log will explain why the Apache is refusing to restart. Then you can troubleshoot from there.

Also you can try to restart the Apache via Panel too. This might also show you the template with errors.

The Apache.php file does appear to be corrupted as it is full of random characters.

Some of the Plesk files are encrypted. Nothing unusual about this file contain "full of random characters"