[Halo 2] Problem with DotHalo

[Killswitch2500]

Hi, I ran into a problem while using dothalo. I accidentally put in too many numbers for the meta for bipd mc_multiplayer (and saved it, woops) Now, I'm trying to fix it but when I click the tag, it gives me an error. If i press quit, it exits the program, and when i click continue, i can change it but everything else freezes so i can't save it. What do I do?