TSR Integration->Classes & Payroll->Error is displaying while assigning classes to employee.

1] Login to the application as a partner.
2] Click on "Assign Classes & Payroll" tile.
3] Check checkbox infron of any employee.
4] Select classes from the dropdowns.
5] Click on "Apply" button.

Actual Result:
Classes are get applied, but information message is saying it is failed.
Expected Result:
Proper messages should be display after assigning class successfully or failing.
Refer attached screenshot for more details.

Cc: Saurabh Sablaka, Swapnil Pandhare, Prasad Pise, Mahendra Mungase, Rajendra Joshi , Niteen Surwase, Komal Barde