fix path

app/services/oauth2.js

@@ -80,7 +80,7 @@ class OAuth2Service extends SiteService {
     );
 
     app.post(
-      '/token',
+      '/oauth2/token',
       passport.authenticate(['basic', 'oauth2-client-password'], { session: false }),
       this.server.token(),
       this.server.errorHandler(),