I am attaching form 8936 to 1120S. However, the system shows the following error message

Error: The submission contains a form which MeF is not accepting as a binary attachment. Please verify whether it is valid for your submission to include the form or schedule. If valid, complete the form or schedule in the program. 

I cannot complete the form in the program since form 8936 is not supported in 1120S! How can I fix this error? The only way I am thinking is to paper file the return but this make no sense that IRS ask us to prepare the form 8936 for clean vehicle credit.