FAILURE :Product Type is being used by a module. Hence cannot delete it.

FAILURE :Product Type is being used by a module. Hence cannot delete it.

Hello,
 
I just imported an asset and I messed up on the labeling of the Product Type, When I tried to delete it I get the error message above. Is there a way to delete this?
 
I'm using SDP 9.1 Build 9121
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