NOTICE (E_NOTICE): Trying to access array offset on value of type bool
At line 102 in lib/userprefs/userprefslib.php
NOTICE (E_NOTICE): Trying to access array offset on value of type bool
At line 103 in lib/userprefs/userprefslib.php
NOTICE (E_NOTICE): Trying to access array offset on value of type null
At line 117 in lib/wiki/wikilib.php