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The error
0 Call to undefined method Joomla\CMS\Application\SiteApplication::isAdmin()
is probably caused by a 3rd party plugin that is not compatible with Joomla 4 and 5.
Could you switch on Joomla's debug mode?
You can switch it on by changing the following in configuration.php (use FTP) :
public $debug = true;
Please post the stack trace here. It will show what causes the error.
The error
0 Call to undefined method Joomla\CMS\Application\SiteApplication::isAdmin()
is probably caused by a 3rd party plugin that is not compatible with Joomla 4 and 5.
Could you switch on Joomla's debug mode?
You can switch it on by changing the following in configuration.php (use FTP) :
public $debug = true;
Please post the stack trace here. It will show what causes the error.
Statistics: Posted by pe7er — Tue Jan 07, 2025 4:31 pm