1 files changed, 1 insertions, 1 deletions
diff --git a/crawler.php b/crawler.php
index 45753f3..f1c37cc 100644
--- a/crawler.php
+++ b/crawler.php
@@ -197,7 +197,7 @@ function urlHasError($url)
     $hash = md5($url);
 
     $conn = initDbConnection();
-    $checkStmt = $conn->prepare('INSERT INTO error_url (url, hash) VALUES (:url, :hash)');
+    $checkStmt = $conn->prepare('INSERT IGNORE INTO error_url (url, hash) VALUES (:url, :hash)');
     $checkStmt->execute([':url' => $url, 'hash' => $hash]);
 }