Fix bug

execute.py

@@ -223,7 +223,7 @@ def unsafe_execute_js(check_program, result, timeout):
 
         # Run program.
         try:
-            exec_result =  ["node", "test.js"], timeout=timeout, capture_output=True)
+            exec_result =  subprocess.run(["node", "test.js"], timeout=timeout, capture_output=True)
             if exec_result.stderr.decode():
                 err = exec_result.stderr.decode()
                 result.append(f"failed: {err}")