Welcome to the forums
I hope you have backed all important data.
This happened to me, just before the drive went.
Might not be your case, but I would still make backups soon.
This is what I found in this forum
You can edit the database directly in PHPMyAdmin and remove the password from your Admin user so that you can log in without a password. You can then reset it from the admin console.
Right click does not work on Firefox.
You could water mark your images with your web site name.
And it may be just me but I don't like those mouse trails
I just move on.