ah, my guess is that you were adding code that broke javascript. check the source code of the page for errors then you may have to go into your database and remove the last widget created.
1.) Login to your @adolygwr account, it has your site on it.
2.) Open a private browser window or a different browser where you're not logged in and go there yourself, you'll see what they are seeing. Probably a message like "You do not have the proper privileges to perform that action!"
3.) Maybe some type of scraper bot or search engine collector or ChatGPT type system perhaps.
Its different for all systems. First place to look would be in your servers control panel. Maybe ask your hosting company. Unless your using a separate service.