The assembly is trying to access a part that was deleted and removed from the assembly. This part was deleted months ago from both the assembly and the server. Most of the time the assembly will open with no apparent issues but occasionally this error will pop up. Upon opening I am asked to find the missing part, however since it does not exist anywhere I need to select suppress. I will then receive an "Internal Application Error" before the program crashes. How do I remove this part reference when it no longer exists in the assembly or on the server? I have been struggling with this for some time now and need it resolved.