We found the problem.
I have not the PASSBOLT_PLUGINS_SSO_PROVIDER_OAUHT2_ENABLED var set to true.
We don’t know if it changed to false in the default.php on the new release or if I changed it in the past and was overridden, but setting it again solved it.
I paste the variable in the passbolt.php to enable it and avoid overriding:
return [
'App' => [
...
'plugins' => [
'sso' => [
'providers' => [
'oauth2' => [
'enabled' => true
],
],
],
],
],
];