Pricing Criteria score is not being automatically calculated even though prices have been entered.
You might have entered a '0' under the Price for one of the vendors, which will return '0' for any scores.
This is because of Bonfire's Pricing Score formula:
Score = (Lowest Cost / Cost Being Evaluated) X Pricing Criteria Weight
A number cannot be divided by 0.
If that particular vendor is disqualified from the Project and no longer require a Pricing Score, completely eliminating that vendor will save the need to input a price.