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Website Suddenly Returns Empty Response and Other WP Robot Fails

PostAlmostAnything
What changes have been made since 4/12 that might explain why one of my websites loads only " ERR_EMPTY_RESPONSE " in Chrome and others display error messages that say " Error: Post could not be created because main module failed. " whenever I try to run a WP Robot campaign in Wordpress. I have literally done nothing to these sites at all for a long time and just now discovered this problem. At first I thought that my version of Wordpress may have updated automatically, but that does not appear to be the case. I checked cPanel for errors and there are none from this time period. The ERR_EMPTY_RESPONSE appears to have been happening for just a day or so because I have received emails via contact page on that site from a couple days back.

Comments

6 comments

Date Votes
  • cPRex Jurassic Moderator
    Hey there! Your user profile here on the forums indicates you only have cPanel-level access to the machine, so you wouldn't be able to check any higher-level error logs to see more details. While you may not have made a change, server-side software does constantly update, so it's possible there was a change made by the host that could affect this. I'd recommend reaching out to the hosting provider or datacenter to see if they can check things on their end and get you more details.
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  • PostAlmostAnything
    Hey there! Your user profile here on the forums indicates you only have cPanel-level access to the machine, so you wouldn't be able to check any higher-level error logs to see more details. While you may not have made a change, server-side software does constantly update, so it's possible there was a change made by the host that could affect this. I'd recommend reaching out to the hosting provider or datacenter to see if they can check things on their end and get you more details.

    I have root access, but I'm not used to it because I normally work in a Windows environment. I had to repair a database and then the site that was returning nothing loaded, but started doing the same thing an hour later. I tried repairing the DB again, but that did not help. I checked the error logs in cPanel and the PHP errors on the file system. There are none, so basically I have an error with an unknown cause and no leads to go on.
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  • PostAlmostAnything
    I can access the site via FTP but for whatever reason it will not send data to web browsers.
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  • cPRex Jurassic Moderator
    Do you see the same error in other browsers, such as Firefox? One test you can do from your local workstation would be to try and access the site with "curl" on the command line, to see if that gives you any additional details on the error. You can do that with this command: curl -v http://yourdomain.com
    Can you try that and see if that gives you more information?
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  • PostAlmostAnything
    Do you see the same error in other browsers, such as Firefox? One test you can do from your local workstation would be to try and access the site with "curl" on the command line, to see if that gives you any additional details on the error. You can do that with this command: curl -v http://yourdomain.com
    Can you try that and see if that gives you more information?

    The loading error went away for unknown reason, but the WPROBOT campaigns still do not run despite the cron job running properly.
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  • cPRex Jurassic Moderator
    I'm glad the page is loading now. For the campaign issues, you'd likely need to do some additional troubleshooting specifically with wprobot. If you don't see anything helpful in their documentation here:
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