Hi,
i´ve a problem with Joomla 4. When i swith Jlexreview on, then i get following Error Message:

CALL TO UNDEFINED METHOD JOOMLA\CMS\APPLICATION\SITEAPPLICATION::ISADMIN()

//
httpdocs/plugins/content/jlexreview/jlexreview.php (159)

it seems to be the content plugin from the review component. What can i do?