Fix Amazon Prime Error 5505/1055 in a Minute
If you receive "Error: 5505/1055" when attempting to stream Prime Video content on your Fire TV Stick, you will need to ensure your country settings are updated to the country you are streaming content from. To update your country settings, please do the following:
Go to Manage Your Content and Devices (https://www.amazon.in/mycd)
Under Country Settings, select Change.
Enter your new address.
Choose a supported country and select Update.
In the Marketplace notification, select learn more and select Transfer your Kindle account to. . . Once you select this option, your Amazon account is transferred to your new country.
To complete this process on your Fire TV device, go to Home-Settings-My Account. Select Deregister. Return to My Account and select Register.
It may take up to an hour for the changes to be reflected. You can clear data from the Prime Video app for the changes to appear more quickly.
For Reference : https://www.amazon.in/gp/help/customer/display.html?nodeId=202104890