I also came here looking for an update on this.

I am getting this same error and I believe it's because the From 2441 is required to be prepared in relation to dependent care expenses included in box 10 of the W-2. While no additional credit will be allowed, ProConnect appears to be requiring Schedule 3 to print with some value whenever the 2441 is generated. I haven't been able to find a solution beyond paper filing, which I'd prefer not to do.