Problem to add my products

Hi, for two months still no one from Amazon can fix my issue to add my products

1. So when I trying to add product after all details added at the en will show an error on Unit Count and Unit Count Type
2. If for example I’ll change the Unit Count Type to - millilitres , then error will move up to Manufacture Part Number
3. If I’ll delete Manufacture Part Number error will move up to Title Error

• I mean whereever I’ll change system not allowing me to add the products

The same problem for all 3 barcodes which I have purchased from GS1. If is the same problem for all 3 of them then may be the problem is in the barcodes ? (Because barcodes are new never used, Amazon should add in the system first ? ) I’m stucked with my products and I don’t know what to do