No sign of a shop or any selling activity for more than a year on this account ? --- do you owe any eBay selling fees from previous listings ?. > 

 Using a PC/Laptop,  good idea to update and reset your dormant Selling account settings >

https://www.ebay.co.uk/help/selling/fees-credits-invoices/setting-changing-automatic-payment-method/...

https://www.ebay.co.uk/help/account/changing-account-settings/changing-account-settings?id=4193