Hello.
I am testing updating my website to joomla 4.1.5.
I have created a subdomain and there i have updated to joomla 4.1.5. After update, joomla admin dashboard opens but on every link i click i get An error has occurred.
0 Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()
Pagebuilder pro is version 3.8.7 not 4.
Unable to update pagebuilder, please help.
template shaper estate