Cannot create or edit users after 5.2.0 upgrade Topic is solved

[cbsmktg]

Since the 5.2.0 upgrade, I am unable to edit or create for client sites. I get
An error has occurred.
0 Call to a member function get ip() on null.
This occurs across all my sites, so I will only go over the common components/software:

PHP Built On Linux server 4.18.0-553.22.1.el8_10.x86_64 #1 SMP Tue Sep 24 05:16:59 EDT 2024 x86_64
Database Type mysql
Database Version 8.0.37
Database Collation latin1_swedish_ci
Database Connection Collation utf8mb4_0900_ai_ci
Database Connection Encryption None
Database Server Supports Connection Encryption Yes
PHP Version 8.3.13
Web Server Apache
WebServer to PHP Interface fpm-fcgi

JSitemap Pro, JCE Editor Pro, YooTheme Templates and Admin Tools Pro.
I believe the problem is in Admin Tools, but have looked at all the settings regarding new user creation, and they should be set for Administrators and Users to make changes (such as passwords). However ... not happening. Any thoughts, suggestions or slaps upside the head are welcome

[Webdongle]

Check your 3rd party extensions are compatible.

[Per Yngve Berg]

Mod. Note: Relocated Topic to the Upgrade Forum.

[cbsmktg]

Solved - when I used debug, I had not changed the reporting to maximum. When I did that I found a "stray" plugin for a component that had been removed that was causing the issue.