It's no problem :)
Barcodes can only be 6, 12, or 13 digits. However, you can:
1. Type in the numbers you have & enter zeros until you get to 12 digits.
2. If there is no barcode, just type 12 zeros where it asks for a barcode.
Kindly continue filling in the rest of the information, as well as submitting a crystal clear photo that shows the ingredients !
At the bottom, we have attached an example of an entry for you!