[wp-trac] [WordPress Trac] #54991: Site problem

[WordPress Trac]

#54991: Site problem
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 Reporter:  nikosgr74     |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  5.9
 Severity:  critical      |   Keywords:
  Focuses:                |
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 Hello all
 I have an issue with my site, i'm getting the message

 Warning:  call_user_func_array() expects parameter 1 to be a valid
 callback, function '_disable_block_editor_for_navigation_post_type' not
 found or invalid function name in /home/centarha/online.tamarainikos.com
 /wp-includes/class-wp-hook.php on line 307

 Any advise or help?

 Thank you!

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Ticket URL: <https://core.trac.wordpress.org/ticket/54991>
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