Migrating and Upgrading to Joomla! 4.x • 500 - behavior::caption not found

500 - behavior::caption not found.

This means you have an extension (probably a template) that relies on Mootools; incompatible with Joomla.

See

• viewtopic.php?t=989032
• viewtopic.php?t=1006484
• viewtopic.php?t=1006239

Find the problem extension and uninstall it.

Statistics: Posted by mtgg — Fri Jan 03, 2025 9:46 pm

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