Minified MUI error #9
Issue
You get this error when browsing in the Activate web.
Error: Minified MUI error #9; visit
MuiProduction errorfor the full message.at l (https://localhost/static/js/main.3eb961cc.js:205:266279)at h (https://localhost/static/js/main.3eb961cc.js:205:267651)at https://localhost/static/js/main.3eb961cc.js:205:16715 at Array.map (<anonymous>)at https://localhost/static/js/main.3eb961cc.js:205:16515at b (https://localhost/static/js/main.3eb961cc.js:205:271452)at https://localhost/static/js/main.3eb961cc.js:205:269320at h (https://localhost/static/js/main.3eb961cc.js:2:671091)at v (https://localhost/static/js/main.3eb961cc.js:2:671391)at https://localhost/static/js/main.3eb961cc.js:205:263293
Possible Fix
Review Resources > Configuration > Web > Theme > Theme.json for any possible constants that may not be handled by MUI, for example white below.

Changing this to #fff and restarting the web services may address the issue.
After the fix:
