Exercises G26

After reaching level 15 diamonds from the completed challenges are not added to the total diamond number that was calculated from the start of the game.
Precondition
1.Registered account already must had reached level 15
Steps
1.Start the game
2.Login in the account
3.Select and complete one of the showcased challenges
Expected result
Total number of diamonds should be incremented by the number of diamonds that completed challenge had given
Actual result
Total number of diamonds is not incremented by the number of diamonds that completed challenge had given.