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Joomla 4 Update Fix Needed
After updating my Joomla site from 3 to 4, I've encountered a critical error: "0 Call to undefined method Joomla\CMS\Application\AdministratorApplication::isSite()". On top of this main issue, I've also noticed that some pages are missing from the site... (Budget: €8 - €30 EUR, Jobs: CSS, HTML, Joomla, MySQL, PHP)
After updating my Joomla site from 3 to 4, I've encountered a critical error: "0 Call to undefined method Joomla\CMS\Application\AdministratorApplication::isSite()". On top of this main issue, I've also noticed that some pages are missing from the site... (Budget: €8 - €30 EUR, Jobs: CSS, HTML, Joomla, MySQL, PHP)