If you logged in to Hotjar and landed on a blank white screen, it's likely due to a caching issue within your browser.
This issue can be resolved by clearing your browser's cache. The steps to do this may vary based on your browser. Refer to the instructions related to the browser that you're using:
You may need to close out of your browser application completely
Make sure to close out of all your browser windows/tabs before attempting to log in again.
Still seeing the same issue?
If you cleared your browser's cache, but you're getting the same behavior, try logging in using your browser's Incognito or Private Browsing mode. These browsing modes do not store cache data, so if the login works using that method, the cache might not have been cleared correctly.