Hi @Xin Tan
I suggest the following steps as a workaround to view the documentation page:
- Clear the cookies and site data for the documentation page in your browser.
- Reload the page after clearing the data.
- Set your region to the United States.
If you need help clearing cookies and site data in Firefox, refer to this guide: https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox
If the issue persists for an extended period, I recommend contacting MathWorks support for further assistance. https://mathworks.com/support/contact_us.html