$ADD = "";
// Skip loading extensions
-if ((!defined('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return;
+if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return;
// Load default sql_patches extension if present
if (FILE_READABLE(PATH."inc/extensions/ext-sql_patches.php")) {