I upgraded to 3.9.28 the joomla version on my site, actualitateaprahoveana.ro and, when I access JA Extension Manager, a blank page with the following errors is displayed:
Deprecated: Required parameter $level follows optional parameter $item in /home/actualis/public_html/administrator/components/com_jaextmanager/helpers/menu.class.php on line 155
Deprecated: Required parameter $messages follows optional parameter $iserror in /home/actualis/public_html/administrator/components/com_jaextmanager/helpers/jahelper.php on line 36
Fatal error: Array and string offset access syntax with curly braces is no longer supported in /home/actualis/public_html/administrator/components/com_jaextmanager/lib/jaupdater/core/php5/json.php on line 161
Also, my front end is broke, with the following error:
0 Call to a member function getType () on null
Previously, I noticed that if I tried to disable the Adinside plugin the same error was displayed. The same error was also displayed when accessing the rss link.