I have tried six ways from Sunday to fix this.
Running through Calibre doesn't generate the same error.
Running through Sigil doesn't generator the error.
This is converted from a word .docx file with several images in the doc.
I have added alt text to the images withing Word so I wouldn't think the "alt" error wouldn't be an issue.
However the "src" error is beyond me. I know barely anything about epub file formats.
Any geniuses out there that can help an old man out?