MMS - Customer Management encountering Application Error

Environment: Testing or Staging
Build: CFA - 21.2.9.3920
Browser: Chrome
Description: MMS - Customer Management encountering Application Error

• User: Will's SSO Login-
• Role: Sys Admin-

• Any user

Steps:
1. Login to MMS (SSO is turned on)
2. Click on the Corporate tab
3. Click on the Accounting section to expand 
4. Click on Customer Management 

Expected Result:
Customer Management should display

Actual Result:
Application Error page received "Cannot access a disposed object."