Hi Yofie Setiawan,
Thank you for reaching out, and I am sorry for any inconvenience caused by this oversight.
Please clean the Joomla cache and browser cache. And try again.
If the problem not resolved, to effectively resolve the issue, please give me Joomla administrator access? This will allow us to investigate thoroughly and provide a quick solution.
Before we proceed, I suggest creating a backup of your site using the Akeeba Backup extension.
Please use the hidden content to share user your Joomla credentials.
I appreciate your cooperation and will ensure to get back to you as soon as possible.
Best regards.