discrepancy with web and mobile store item availability

[HanaEarthGarden]

Some of the items on my mobile version say 'Not Available' even though PC version are OK, saying 'Add to Cart'.
Why is that?
Is there any way to fix this?

[Valentina]

Hi and welcome @HanaEarthGarden - sorry to see trouble has brought you to the Seller Community! 
 

This does sound a bit off, but it's difficult to pinpoint what may be happening without some visibility into the items you are referring to. Are you able to share links here to some of the items you are running into this issue with? Thank you in advance✨