Before doing anything else, please make sure your browser and OS are fully up to date. It's probably the first thing we'll ask you to do, if you need to contact us to report a problem. If you can do that now it may solve your problem immediately.
Not running up to date software leaves you vulnerable to some very serious security threats. It's also necessary to keep everything working properly.
I'd recommend you start by Googling something like 'how do I update my browser' and 'how do I update Windows/MacOS/Linux/iPhone/Android' (select which one you're using), as you can do that right now, and won't have to wait for a response to an email. We can guide you in the right direction though, if you prefer.