Call to Undefined Function after Update

While I saw someone else was having an issue with version 3.1.0, I to am having an issue but it is a little bit different so figured it needed to be a different support ticket:

[05-May-2026 14:41:58 UTC] PHP Fatal error: Uncaught Error: Call to undefined function set_current_screen() in /home/[site]/public_html/wp-admin/admin-header.php:37
Stack trace: 
0 /home/[site]/public_html/wp-admin/options.php(379): require_once() 
1 /home/[site]/public_html/wp-content/plugins/wp-mapit/wp_mapit.php(59): require_once('/home/[site]…') 
2 [internal function]: WpMapit{closure}('Options') 
3 /home/[site]/public_html/wp-content/themes/Nebula-main/libs/Options/Options.php(5): trait_exists('Options') 
4 /home/[site]/public_html/wp-content/themes/Nebula-main/nebula.php(14): require_once('/home/[site]…') 
5 /home/[site]/public_html/wp-content/themes/BOU2020/functions.php(4): require_once('/home/[site]…') 
6 /home/[site]/public_html/wp-settings.php(710): include('/home/[site]…') 
7 /home/[site]/public_html/wp-config.php(97): require_once('/home/[site]…') 
8 /home/[site]/public_html/wp-load.php(50): require_once('/home/[site]…') 
9 /home/[site]/public_html/wp-admin/admin.php(35): require_once('/home/[site]…') 
10 /home/[site]/public_html/wp-admin/index.php(10): require_once('/home/[site]…') 
11 {main} 
 thrown in /home/[site]/public_html/wp-admin/admin-header.php on line 37

I am not seeing a set_current_screen anywhere in the WP MapIt plugin but I am wondering what may be causing this issue. Reverting back to the previously installed version of Version 3.0.3 gets the system back up and running without issue.

If you can please provide assistance with trying to track down what may be going on with this and how to possibly resolve it. Thanks in advanced.