C&C 3: Kane's Wrath: Verify Registration Code Issue

Hi, 

I recently bought the Command and Conquer Ultimate Collection on Origin to play Command and Conquer 3: Kane's Wrath. I tried to run the game for the first time, but was prompted to enter and verify my game registration code. I entered the key found in the game properties, but the prompt kept popping up over and over again every time I entered the code, and the game will not properly start. I have attached a screenshot of the exact message prompt that keeps popping up. Does anyone have workaround for this?

Thank you!