Hi Gloria
I was able to get your wordpress login page to show up
https://heavyduty.it/wp-admin
You should be able to get in there and undo it.
First you might want to disable your plugins. FTP in and rename your plugins folder to something like plugins2.
Another possiblitly, did you update the plugins and not your WP install? It’s advisable to be up to date with the WP install before updating your plugins. You might have a conflict there.
Good luck