After the fair, whether or not you print premium checks from FairEntry, you may need to print the premium reports.
Those reports will be blank unless you have "set" the premium amounts by going through the process to finalize your budgets. You don't have to physically print the checks, but the process of finalizing budgets enters the premium amounts as the "final answer" and allows all premium reports to be printed with the correct amounts listed.
If you change your premium setup (adjust amounts or points) or need to make corrections to results after the budgets have been finalized, you must reset and refinalize the budgets again to re-establish the new premium amounts. You should not generate or print checks until after you have confirmed the amounts are correct in the premium reports.
See the article Printing Premium Checks for more details on the process.