Okay
  Public Ticket #1747477
HTTP server error
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  • jakobschnyder started the conversation

    Hello,

    Since a few days, we have the following error:

    __________________

    "It seems there is a server issue that prevented LayerSlider from saving your work. Please check LayerSlider -> Options -> System Status for potential errors, try to temporaritly disable themes/plugins to rule out incompatibility issues or contact your hosting provider to resolve server configuration problems. Your HTTP server thrown the following error:"

    __________________

    However, there is no actual error shown. This is what i've done so far:

    - Disabled all plugins, except LayerSlider --> Same error

    - Updated LayerSlider --> Same error

    - Checked PHP Server Settings --> seem fine to me

    __________________

    Here is my System Status:

    Auto-Updates:Activated
    LayerSlider version:6.7.6
    LayerSlider database:OK
    WordPress version:4.9.8
    Site Setup & Plugin Settings
    Install LocationOK
    WP Debug Mode:Disabled
    Uploads directory:OK
    Cache pluginsNot found
    jQuery Google CDN:Disabled
    Server Settings
    PHP Version:7.1.22
    PHP Time Limit:No limit
    PHP Memory Limit:256M
    PHP Post Max Size:32M
    PHP Max Upload Size:32M
    Suhosin:Not found
    PHP ZipArchive Extension:Enabled
    PHP DOMDocument Extension:Enabled
    PHP Multibyte String Extension:Enabled
    PHP Multibyte Regex Functions:Enabled
    WP Remote functions:OK


    Thanks for your help.

    Best,

    Jakob

  • [deleted] replied

    Hello Jakob,

    Thank you for getting in touch with us. My name is Attila and I'm happy to assist you today. I appreciate your patience while we've been working towards your ticket.

    Errors like this are almost always server configuration issues (PHP error related problems), but currently the exact error message is not visible as the WP debug mode is not enabled. Please try to enable it and look for any PHP errors in the logs that could provide more information.
    https://codex.wordpress.org/WP_DEBUG
    https://codex.wordpress.org/Debugging_in_WordPress

    If you're not familiar with it, your host could also help with it, to identify the exact error and its source.

    In the meantime please also try to look for any incompatibility problems by temporary disabling other plugins and switching to a default theme. Just to make sure that it's not caused by a 3rd party item.

  • jakobschnyder replied

    Hi Attila

    Thanks for your reply.

    I disabled theme and plugins. The error was still there. I also activated debugging:

    -----------------------------

     // Enable WP_DEBUG mode
    define( 'WP_DEBUG', true );

    // Enable Debug logging to the /wp-content/debug.log file
    define( 'WP_DEBUG_LOG', true );

    // Disable display of errors and warnings 
    define( 'WP_DEBUG_DISPLAY', false );
    @ini_set( 'display_errors', 0 );

    -----------------------------

    However, the error is still not revealed. The message ends after: "Your HTTP server thrown the following error:"

    Best, Jakob

  • [deleted] replied

    The PHP error we're looking for is not the same notification/message that is displayed in the plugin. That is missing the actual error we need, that's why you needed to enable the debug mode to be able to see the additional PHP error messages. After enabling the debug mode you should be able to see and list the errors that were invisible until now, on the page where it happens after triggering it.

  • jakobschnyder replied

    Hi Attila

    Thank you for your message. However, i don't see any error. Not in the js-popup nor on the page itself. The only thing that changes is the Buttontext (Save changes Button) to "Error" and the color changes to red. Where should i be able to see the message? As i posted in the message before, i activated debugging.

    The only thing i see is in the console some error - i added it as an attachment.

    Thanks for your help,

    Beste, 

    Jakob

  • [deleted] replied

    Please set up a temporary WP login for us, so we can check on it. Please also leave the debug mode active until then. Thank you.

  •   jakobschnyder replied privately
  • [deleted] replied

    Unfortunately this does not seem to work: ERROR Invalid username or incorrect password. 

  •   jakobschnyder replied privately
  • [deleted] replied

    Thank you. My colleagues and I will look into this to see if we can find anything, and get back to you shortly.

  • jakobschnyder replied

    Hi Attila

    Did you have a chance to look at it?

    Best, Jakob

  • [deleted] replied

    Thank you for your patience. 

    This is the error we found: 403 Forbidden Access to this resource on the server is denied!

    This is the error that occurs during saving. Our guess is that there is some kind of firewall, content filter or other similar application in your server that blocks the request. The web server's (for example Apache) mod_security module could be used for this too. So it's most likely a server configuration issue.
    The log files would need to be checked on, but as we can see you've also set the debug mode in a way where it lists the errors in a file and we cannot access that because of the same (forbidden) error.

    So we'd recommend to contact your host and look on the log files. Unfortunately we cannot do more from our end as we do not have access to your server settings. Only your hosting has the necessary tools and permissions to adjust this.