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 Finalizing the Budget. You do not need to generate the actual checks, but the process of finalizing the budgets enters the premium amounts as the "final answer" and allows all premium reports to be printed with the correct amounts listed.
If you need to change your premium setup (adjust amounts or points) or make corrections to results after you have finalized the budget or generated/printed checks, you will need to go back and reset the budget, then go through the process again to finalize the budgets and establish the new premium amounts.
See the article Printing Premium Checks for more details on the process.
Troubleshooting: (the short version is that the budget has not been finalized).
See also: Finalizing Budgets Quick Video