hi guys, I purchased the game for xbox one, but as soon as I start it gives me an error: connection to the server is invalid, I search on the internet to resolve it and I need to connect the Xbox account to the site, but it's greyed out, what do I do?

Greetings Lorenxo99,
It is a bit difficult to determine since that error could have multiple meanings.
Have you already attempted the following:
- Restarted modem/router.
- Power Cycling the console (un-plug for 30~60 seconds, then turn it back on).
- Ensured that your time and date match with the region you are playing on?
To better assist you, I believe it is best to submit an inquiry using the link below.
Support Center