Warning: preg_match(): Compilation failed: quantifier does not follow a repeatab

  • Resolved sallijane

    (@sallijane)


    3 years, 6 months ago

    I get a whole series of these messages:

    Warning: preg_match(): Compilation failed: quantifier does not follow a repeatable item at offset 1 in?/homepages/18/d221467449/htdocs/clickandbuilds/LackawannaCoalition/wp-includes/class-wp.php?on line?223

Warning: preg_match(): Compilation failed: quantifier does not follow a repeatable item at offset 1 in?/homepages/18/d221467449/htdocs/clickandbuilds/LackawannaCoalition/wp-includes/class-wp.php?on line?224
and a single instance of this message at the end.
Warning: Cannot modify header information - headers already sent by (output started at /homepages/18/d221467449/htdocs/clickandbuilds/LackawannaCoalition/wp-includes/class-wp.php:223) in?/homepages/18/d221467449/htdocs/clickandbuilds/LackawannaCoalition/wp-admin/admin-header.php?on line?9

    I had just updated Gutenberg plug-in and, I believe, PublishPress Authors. I have the WP Safe Mode plug-in, which I activated, but the warnings stayed. I tried switching themes from my Ice Cold child theme to twenty-twentyone, but the warnings stayed.

    I am relatively new to all of this; I know that this is a “warning”, but when I go to view a post, this is copied on that page (at least as a logged-in administrator); the site is under development, not yet live (a transition from Joomla in progress), so IDK how live posts would display.

    I just checked the site health status screen; imagick has been shown as missing before, so that does not worry me; I see that the REST API did not process context correctly, IDK what that means, nor do I remember seeing that before. Also, I see that the “authorization header”, which apparently comes from 3rd-party applications (of which I don’t remember approving any), is missing.

    WP version 5.7.2; PHP 7.4.18; SQL server up to date; 13 other tests passed.
    Any help is welcome.

    • This topic was modified 3 years, 6 months ago by sallijane.
Viewing 2 replies - 1 through 2 (of 2 total)
  • Moderator James Huff

    (@macmanx)

    Try manually resetting your plugins (no Dashboard access required). If that resolves the issue, reactivate each one individually until you find the cause.

    If that does not resolve the issue, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel (consult your hosting provider’s documentation for specifics on these), navigate to /wp-content/themes/ and rename the directory of your currently active theme. This will force the default theme to activate and hopefully rule-out a theme-specific issue (theme functions can interfere like plugins).

    —

    As a side-note, are you sure you really need the Gutenberg plugin? The Block Editor has been built into WordPress since 5.0. The Gutenberg plugin is just a testing bed for new features and is not guaranteed to be stable.

    Thread Starter sallijane

    (@sallijane)

    Thanks so much, James! Not sure that I do actually need the Gutenberg plug-in; I will follow the steps you suggest and deactivate Gutenberg also, and if everything looks the same, I will remove it. I am surely not confident in myself to be using test features!

    I really appreciate the quick reply!

Viewing 2 replies - 1 through 2 (of 2 total)
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