Solution #1:

Un-install and re-install the affected Blackbaud product (ex: The Raiser's Edge or The Financial Edge)

Solution #2 (alternate):

Ensure that the existing VBA code does not have broken library references.
  1. Comment out any custom code.
  2. Check your VBA for missing references (Tools > References)
  3. Re-compile the SYSTEM and USER code (Debug > Compile)