Can a trust with an individual trustee, as opposed to a corporate trustee, file electronically? Getting a critical diagnostic stating "A Financial Institution EIN is required for this return".
You should be able to e-file. Screen 1. Fiduciary Name and Title should be the only entry needed.
Look at the Financial Institution EIN for some input. If you see nothing, type something in > highlight it and hit delete. My guess is that there is some miscellaneous input in that field.