Hi. According to what I've read elsewhere in the forum about "0 Event onUserLogin only accepts Boolean results", there's a suggestion to look at Akeeba Admin Tools if it is not using the latest version (which is currently 7.5.4).
Similar advice about this error message also appears at viewtopic.php?t=1004921.
If AAT is the cause of the problem, you may be able to temporarily workaround it (and login to the backend of your website) by renaming the file ../plugins/system/admintools/src/Extension/AdminTools.php as /plugins/system/admintools/src/Extension/AdminTools.php-old
Similar advice about this error message also appears at viewtopic.php?t=1004921.
If AAT is the cause of the problem, you may be able to temporarily workaround it (and login to the backend of your website) by renaming the file ../plugins/system/admintools/src/Extension/AdminTools.php as /plugins/system/admintools/src/Extension/AdminTools.php-old
Statistics: Posted by mtgg — Mon Aug 26, 2024 9:17 pm