"We can't e-file your return" Error message on form7203 when efiling, but says I MUST efile, therefore impossible to submit?

I am attempting to ammend my return. It says I MUST efile and I can't send it in because my original return was efiled...

However when I go to e-file, it gives me the below error, that says "We can't e-file your return because we are unable to locate the attachment at /attachment/Form7203.pdf. Please go back and re-attach it. Then try e-filing again".

I restarted. I went back and looked at form 7203 (its there, good as new) . No idea what to do at this point if I can't fix it, can't e-file, and can't paper file. Anyone have any tips on how to either get around this error or to get help from intuit?

 

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