Follow below steps to re-establish connection between AfterShip and your eBay store:
1. Remove invalid connection at Aftership
a. Log into your AfterShip account > apps > eBay.
b. Remove the invalid connection by clicking the 'X' icon.
2. Unsubscribe AfterShip app at eBay app store
a. Log into eBay > Account Settings > Application.
b. Find the AfterShip app then click Other actions > Unsubscribe.
3. Re-connect AfterShip
a. Log into your AfterShip account. > apps > eBay.
b. Click Connect to eBay.
If you set this up correctly, you should see a green tick icon of your eBay connection after your AfterShip account.