diff --git a/src/classes/Pollers/Server.php b/src/classes/Pollers/Server.php
index 290b9b4..2b3d9be 100644
--- a/src/classes/Pollers/Server.php
+++ b/src/classes/Pollers/Server.php
@@ -290,6 +290,9 @@ class Server
 			} else {
 				$this->logger->info('SSL-verified URL probe failed with error code: ' . $e->getCode());
 			}
+		} catch (\InvalidArgumentException $e) {
+			$this->logger->error('Invalid argument provided to HTTP client', ['base_url' => $base_url, 'exception' => $e]);
+			return ['data' => false, 'time' => 0, 'curl_info' => [], 'ssl_state' => null];
 		}
 
 		$probe_end = microtime(true);