Start by narrowing the failure
Check whether the problem occurs on one channel, all channels or only the Amazon Fire TV and Firestick player. Note the time and exact message. Avoid immediately deleting an account or factory-resetting hardware.
Compare the network path
For Amazon Fire TV and Firestick, compare 5 GHz Wi-Fi against Ethernet via a compatible adapter. Restart just the player first, then compare another stream and, if possible, another compatible device on the same subscription.
Recover with a specific support request
If problems persist, disable battery-saving behaviour that closes a player mid-stream. Send support the device model, player version and one repeatable example without exposing your password or full account URL.
Before paying for a longer plan
Confirm the total charge and currency, permitted connections, app fees and renewal route. If your goal is a reseller account, check the brand-specific credit rule rather than using a retail plan as a price proxy.