ERROR invalid-user-claim

i’m using aws cognito for my sso
the connection with cognito is working,
but when i insert my data for login, the site respond ERROR invalid user claim
would it be possipble that the error is the identity or nickname key?
now i insertd the examples values
oter parametres are:
Scope: openid
Login Endpoint URL: my.domain.org/oauth2/authorize
Userinfo Endpoint URL: my.domain.org/oauth2/UserInfo
Token Validation Endpoint URL: my.domain.org/oauth2/token: my.domain.org/oauth2/logout
Disable SSL Verify: true
Email Formatting: {email}
Display Name Formatting: {family_name}
Identify with User Name: false
Link Existing Users: true
Create user if does not exist: true

any suggestion for fix the problem?

thank
Emanuele