fix register tournament

tournaments/views.py

@@ -54,6 +54,8 @@ from .services.tournament_unregistration import TournamentUnregistrationService
 from django.core.exceptions import ValidationError
 from .forms import (
     ProfileUpdateForm,
+    SimpleCustomUserCreationForm,
+    SimpleForm
 )
 from .utils.apns import send_push_notification
 from .utils.licence_validator import LicenseValidator