E-File Error - Line 30 percent is not between the prescribed upper and lower limits

I'm trying to e-file my 1120 C-Corp return, but it errors and says:

 

Form 2220: Line 30 percent is not between the prescribed upper and lower limits.

 

I tried entering 0, .3, any number - but it always gives me the above error.

 

Any ideas, how to get this cleared so I can e-file?