Error decoding JSON from jwks_uri on Nextcloud 30 using Drupal as provider

[topsot]

Hello I am using drupal 10 as a provider and I am getting the error:
UI: " Error decoding JSON from jwks_uri"
logs: [oidc_login] Warning: Got non-200 response code when querying JWKs
GET /index.php/apps/oidc_login/oidc?code=c9956117f33d3768b482eeba9a0980ae9688d548&state=afd449fab296fecd81e0f910a428d6fc
from by -- at Oct 7, 2024, 5:06:20 PM

I have tested the Drupal and its working with another openID client.
My config is:
'oidc_login_provider_url' => 'https://d10.portal.opske.allweb.gr',
'oidc_login_client_id' => '---------------',
'oidc_login_client_secret' => '------------------------',
'oidc_login_scope' => 'openid email',
'oidc_login_auto_redirect' => false,
'oidc_login_public_key_caching_time' => 0,
'oidc_login_button_text' => 'Log in with OPSKE Portal d10',
'oidc_login_attributes' => array (
'mail' => 'email',
),

can you please help me?