I am having – it feels like – the exact same issue. In fact, I accidentally create this new username/account with wordpress in an attempt to ‘remember’ the correct credentials. Nothing I use is working, my page’s wp-admin says not secure. I cannot even get in via Go Daddy. When I try and login to www.remarpro.com, nothing works. I’ve tried a few things but not disabling plugin’s yet (a little unsure how to). I can’t reset my password. It tells me that my usernames are all invalid. I’m really at a loss here.