Cause - 

You downloaded something that you are not entitled to. Or you have downloaded the wrong key type of this product. (I.E. YYMEA Instead of MTOOG)

 

Solution - 

Double check your key type by looking on the side of the Key for the five letters. Download the product with that key type listed.

*For VBSDN* Please don't download YYMEA, that is incorrect. Your key is YYMEA but your license is VBSDN. Please make sure you download VBSDN Products not YYMEA.