J4.x:Upgrades to Joomla 4.0.2 fail with an AJAX error message/Page display title/it From Joomla! Documentation Revision as of 18:19, 25 January 2022 by Ino (talk | contribs) (Created page with "Upgrades to Joomla 4.0.2 fail with an AJAX error message")(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) Upgrades to Joomla 4.0.2 fail with an AJAX error message