I am attempting to efile a California amended return for TY 2022 -- I e-filed the original return over a year ago.

While there are no errors showing on the Final Review for the return, I am continuing to receive an e-file reject with the following message:  "The California Amended return could not be processed electronically.  Data in the return is missing or invalid.  Please enter the primary's signature date."

Any ideas on how I can fix this?  Thx in advance!