Your browser don't have JavaScript enabled. To enable JavaScript you can follow these steps given blow according to your browser
Google Chrome:
Click on the three vertical dots (menu) in the top-right corner.
Select "Settings."
Scroll down and click on "Privacy and security" in the left sidebar.
Click on "Site settings."
Scroll down and click on "JavaScript."
Make sure the toggle switch next to "Allowed (recommended)" is turned on.
Mozilla Firefox:
Click on the three horizontal lines (menu) in the top-right corner.
Select "Options."
In the left sidebar, click on "Privacy & Security."
Microsoft Edge:
Click on the three horizontal dots (menu) in the top-right corner.
Scroll down and click on "Settings."
Scroll down and click on "Site permissions" in the left sidebar.
Click on "JavaScript."
Ensure the toggle switch next to "Allowed (recommended)" is turned on.
Safari :
Click on "Safari" in the top-left corner of the screen and then select "Preferences."
In the Preferences window, navigate to the "Security" tab. You should see an option labeled "Enable JavaScript." Make sure the box next to it is checked.
If Safari was already open, you might need to reload the page you were trying to use JavaScript on, or you might need to restart Safari for the changes to take effect.