The web browser you’re using accessed the page incorrectly or the request was corrupt somehow. It’s usually caused by entering the wrong URL into the address bar.
How to fix it:
Check for errors in the URL. This is the most common reason for a 400 Bad Request error. Make sure to check for syntax errors!
Clear your browser’s cookies. Sites can sometimes report a 400 error if the cookie it’s reading is corrupt.
Clear your DNS cache. If you don’t know how to do this, read these instructions! (Instructions Hyperlink to https://cutt.ly/Pj453aV)