Worth checking with @topelevenhelp that there isn't a restriction on your T11 account. The game will place restriction on your account if it detects too many boosters being added on one day or VPN usage. I had restriction and they lifted it when I threatened to stop buying tokens and quit the game. Now my boosters are added again when I watch videos.
FC Loella. Server 121. Level 20
14 League Titles
2 Champions League