fix oauth

allauth_oauth/views.py

@@ -4,6 +4,7 @@
 
 import requests
 from allauth.socialaccount import app_settings
+from django.core.exceptions import ImproperlyConfigured
 from allauth.socialaccount.providers.oauth2.views import (
     OAuth2Adapter,
     OAuth2CallbackView,
@@ -31,7 +32,12 @@ class OAuthAdapter(OAuth2Adapter):
 
     @property
     def domain(self):
-        return self.settings.get("DOMAIN", "")
+        domain = self.settings.get("DOMAIN", "")
+        if not domain:
+            raise ImproperlyConfigured(
+                "OAUTH_SERVER_URL is not configured. Set it in your .env file."
+            )
+        return domain
 
     @property
     def access_token_url(self):