Why am I getting an error when I try to sync my Deliveroo menu?

To successfully sync menu items to Deliveroo, ensure the following before clicking Sync Menu:

1. Your menu item and modifier names should contain 2 - 122 alphabetic characters.
2. You should fill out the menu description and upload a cover photo for your Deliveroo store. 

Note: Before clicking Sync Menu, make sure you've completed the list of requirements found here.