diff --git a/plt/index.php b/plt/index.php
index c957be8..e854153 100755
--- a/plt/index.php
+++ b/plt/index.php
@@ -161,6 +161,7 @@ function runPythonCodeTrigger($functionName, $activeTable, $row) {
  */
 
 function updateDatabaseRow($tableName, $originalRow, $newRowValue) {
+    if (empty($originalRow) || empty($newRowValue)) return;
     $pkColsName = getTblPrimaryKeyColName($tableName);
     $pkColsValues = array_map(fn($cName) => $originalRow[$cName], $pkColsName);