--- a/mgallery.php	Fri Aug 02 09:26:12 2019 +0300
+++ b/mgallery.php	Fri Aug 02 12:54:51 2019 +0300
@@ -447,7 +447,17 @@
 //
 // Read and process gallery settings
 //
-mgReadSettings();
+if (mgReadSettings($searchPaths) === FALSE)
+{
+  mgPrintPageHeader("Internal error!", "galleryPage");
+
+  echo
+    "<h1>Internal error!</h1>\n".
+    "<p>Could not find MGallery configuration file.</p>";
+
+  mgPrintPageFooter();
+  exit;
+}
 
 $pageCSS = mgGetSetting("css");
 $pageJSFile = mgGetSetting("js_file");