Why i can’t sub for Retainers service?

[Silent-glass]

As you see the title

When I click on next , it always returns me to the same page
I can’t subscribe i’m stuck in the same page


With only this msgs
Do i need to wait for my sub end , and then i can sub for the game time and retainers service together??

https://up6.cc/2024/07/172065888230711.jpeg