Steps to reproduce the issue
Click on Index in a multilingual site with 4 languages
EDIT: modified issue after doing clean install
Actual result
When system debug is on
ReferenceError: jQuery is not defined[Learn More] debugbar.js:4:5
TypeError: PhpDebugBar.utils is undefined[Learn More] widgets.js:14:9
TypeError: PhpDebugBar.Widget is undefined[Learn More] openhandler.js:13:5
TypeError: PhpDebugBar.utils is undefined[Learn More] widget.min.js:1:18
TypeError: PhpDebugBar.utils is undefined[Learn More] widget.min.js:1:18
TypeError: PhpDebugBar.DebugBar is not a constructor[Learn More] index.php:70:19
@Hackwar
I can't replicate the issue. We lately merged a PR that contains database changes which would result in this error. Please make sure that your #__finder_taxonomy table contains lft, rgt and language columns.