I had the same problem. To resolve it, Go to your ftp > extension folder > change name from bruteprotect to brute-protect for example. Then, you can log into your website.
After that, Go to extension page of your wordpress > you will see a mistake with bruteprotect files. Go to your ftp > rename brute-protect to bruteprotect.
Then, go to extension page of your wordpress, and activate bruteprotect extension. Don’t forget to put your IP in whitelist.
I hope it will help !
