Steps to try:
Try in normal and then hidden/incognito/private mode
Fully close out the browser, make sure it is closed in task manager or the linux/mac equivalent, then try again
Try a different browser to see if it is just that one/that kind. So if you use Chrome/Edge/Vivaldi/Brave those are all chromium, a different one would be firefox.
Make sure it isn't your extensions/plugins like an ad blocker by turning that off and checking.
Flush your browser cache, then try again
Make sure it isn't your virus scanner or malware scanner.
It may take one or multiple of these steps to fix.