I MANUALLY INPUT MY 1095-A AND GOT AN ERROR MESSAGE THAT WON'T ALLOW ME TO CONTINUE. BUT IT DOESN'T SAY WHAT THE ERROR IS. I DID PUT IN THE LAST 15 CHARACTERS IN BOX 2

dont use 0's

box 2 is supposed to be the complete marketplace assigned policy number as listed on the 1095A.

the last 15 characters doesn't read like you entered the correct info.   

we can't see your return or form 

Does anyone know how to proceed when this happens?  I can’t find what is triggering there error.  All the information that I entered looks correct.