I’ve been able to log into my account - it turns out that it was just my internet connection and after I switched to a different provider I was able to successfully log in and also access some sites that I had same issue with.
Good to hear that you got your problem solved by changing your internet connection and now you can log in to CoinRoyale.com without any issues. I guess internet connection is always the main issue one need to look for. I used to had many issues when I was on DSL connection but as soon as I joined Fiber optic internet service provider most of my issues got solved. I suggest you to prefer Fiber optic connection if it's available in your area as that solves most of the issues.