I'm using: MediaWiki 1.30.0 PHP 7.4.1 (apache2handler) MariaDB 10.3.21-MariaDB-1:10.3.21+maria~jessie
I get this error a lot on the log:
-PHP Notice: Trying to access array offset on value of type null in .../wiki/includes/profiler/SectionProfiler.php on line 99
-PHP Notice: Trying to access array offset on value of type null in .../wiki/includes/profiler/SectionProfiler.php on line 100
-PHP Notice: Trying to access array offset on value of type null in .../wiki/includes/profiler/SectionProfiler.php on line 101
I try to google this, but it often sent me to other MediaWiki sites with this notice instead of a discussion of the issue.
Regards