SElizabeth,

This happens because you removed a project that was used for allocation in all those transactions.  

You will need to to recreate that project, look up and adjust each transactions using this project before and allocate them back.

Hope this helps.  

Thanks for your advice - in order to save time from having to adjust each transaction, I simply restore a backup from the day prior to my problem and entered the budget as of that day; therefore, I only have to re-enter any transactions from there on!

Thanks for your advice - in order to save time from having to adjust each transaction, I simply restore a backup from the day prior to my problem and entered the budget as of that day; therefore, I only have to re-enter any transactions from there on!