Console ekranında sürekli dönen hata var o da muhtemelen interval değeriyle sayfayı yenilediğinden oluyor galiba.

Hatalar:
Failed to load resource: the server responded with a status of 404 (Not Found)
61757a3108834f0017c70c29.mockapi.io/status:1

Failed to load resource: the server responded with a status of 429 (Too Many Requests)
sistem.php:1

Uncaught SyntaxError: Unexpected token O in JSON at position 0
at JSON.parse ()
at XMLHttpRequest.request.onload (sistem.php:42)
6sistem.php:44

Uncaught TypeError: Cannot set properties of null (setting 'checked')
at sistem.php:44
at Array.forEach ()
at XMLHttpRequest.request.onload (sistem.php:43)
61757a3108834f0017c70c29.mockapi.io/status:1

Failed to load resource: the server responded with a status of 429 (Too Many Requests)
sistem.php:1

Uncaught SyntaxError: Unexpected token O in JSON at position 0
at JSON.parse ()
at XMLHttpRequest.request.onload (sistem.php:42)
61757a3108834f0017c70c29.mockapi.io/status:1

Failed to load resource: the server responded with a status of 429 (Too Many Requests)
sistem.php:1

Uncaught SyntaxError: Unexpected token O in JSON at position 0
at JSON.parse ()
at XMLHttpRequest.request.onload (sistem.php:42)