diff --git a/classes/class-db-driver-wpdb.php b/classes/class-db-driver-wpdb.php
index 49b95a3a1..f5841aa78 100755
--- a/classes/class-db-driver-wpdb.php
+++ b/classes/class-db-driver-wpdb.php
@@ -81,7 +81,9 @@ public function insert_record( $data ) {
 		// Insert record meta.
 		foreach ( (array) $meta as $key => $vals ) {
 			foreach ( (array) $vals as $val ) {
-				$this->insert_meta( $record_id, $key, $val );
+				if ( is_scalar( $val ) && $val !== '' ) {
+					$this->insert_meta( $record_id, $key, $val );
+				}
 			}
 		}