This is the message that I get, and I like to see that I am the administrator of the teams
1#
Selected user account does not exist in tenant 'Microsoft Services' and cannot access the application '09abbdfd-ed23-44ee-a2d9-a627aa1c90f3' in that tenant. The account needs to be added as an external user in the tenant first. Please use a different account.
2# So I tried with a different email and I gotta the following message.
Selected user account does not exist in tenant 'Microsoft Services' and cannot access the application '09abbdfd-ed23-44ee-a2d9-a627aa1c90f3' in that tenant. The account needs to be added as an external user in the tenant first. Please use a different account.