connection failed after connecting other user

Hi, I wanted to give one of my colleagues access to Jetpack. Therefore, I logged him from his account (installed wordrpress) to my account in wordpress.com. Since then stats aren’t working anymore.

I logged him out and me into the account again

I already disconnected and activated jetpack in our website.
The website is added to my wordpress.com-account (had to re-do this)

Still wordpress installation says I am not a member of this website.

Any help?

Best regards
Torsten

https://wordpress.org/plugins/jetpack/