• Please be aware: Kaspersky Anti-Virus has been deprecated
    With the upgrade to Plesk Obsidian 18.0.64, "Kaspersky Anti-Virus for Servers" will be automatically removed from the servers it is installed on. We recommend that you migrate to Sophos Anti-Virus for Servers.
  • The Horde webmail has been deprecated. Its complete removal is scheduled for April 2025. For details and recommended actions, see the Feature and Deprecation Plan.
  • We’re working on enhancing the Monitoring feature in Plesk, and we could really use your expertise! If you’re open to sharing your experiences with server and website monitoring or providing feedback, we’d love to have a one-hour online meeting with you.

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  1. W

    PHP Warning in maintenance.php

    Yes, I know WordPress itself switches the site to maintenance mode while updating, but is "wp-content/maintenace.php" used at that time? I can't find any file updated around the time of errors. "wp-content/maintenace.php" is generated by not WordPress itself but WordPress Toolkit, isn't it? So...
  2. W

    PHP Warning in maintenance.php

    Thank you for your replies. I'm not sure what header() function does, so I looked up. My understanding is: 1. The site is switched to the maintenance mode automatically by WordPress Toolkit for some reason. 2. Someone visited the site during the maintenance mode. 3. HTML response header is sent...
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    PHP Warning in maintenance.php

    I often see following warnings in error log files: PHP Warning: Cannot modify header information - headers already sent in (pathname)/wp-content/maintenance.php on line 16 PHP Warning: Cannot modify header information - headers already sent in (pathname)/wp-content/maintenance.php on line 17...
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