diff --git a/lib/Controller/ContactController.php b/lib/Controller/ContactController.php
index 6bdc165f9..8e5298a02 100644
--- a/lib/Controller/ContactController.php
+++ b/lib/Controller/ContactController.php
@@ -212,7 +212,8 @@ public function getCircleMembers(string $circleId):JSONResponse {
 				$user = $this->userManager->get($circleMemberUserId);
 
 				if ($user === null) {
-					throw new ServiceException('Could not find organizer');
+					$this->logger->warning('Could not find user with user id' . $circleMemberUserId);
+					throw new ServiceException('Could not find circle member');
 				}
 
 				$contacts[] = [