WT -> SEO -> Add Xpress Company -> Server error is displaying for "Add Benefit Plan Group" page.

1] Login to the application on Local Env.
2] Using left navigation menu from the Home page navigate to Employer Administrator>Add Xpress Company.
3] Fill up the required information till step number 6 (Add Employee).
4] From "Add Employee" step click on "Continue" button.

Actual Result:
Server error pop up gets display.
Expected Result:
No error should be display, user should be able to add company without any error.
Refer attached screenshot for more details.