fixup! fix(teams): resolve undefined variable error and add logging

lib/Controller/ContactController.php

@@ -212,7 +212,7 @@ public function getCircleMembers(string $circleId):JSONResponse {
 				$user = $this->userManager->get($circleMemberUserId);
 
 				if ($user === null) {
-					$this->logger->warning('Could not find user with user id' . $circleMemberUserId);
+					$this->logger->error('Could not find user with user id' . $circleMemberUserId);
 					throw new ServiceException('Could not find circle member');
 				}