Website crashed / Cant login

Hi

I am very new to wordpress and not advanced at all. I made my wesbite https://www.beachhouserecords.co.uk and all of a sudden i cant login and i cant access my website. It says ‘webpage not available’, on both my website and my login page with this message:

The server at https://www.beachhouserecords.co.uk can’t be found, because the DNS lookup failed. DNS is the network service that translates a website’s name to its Internet address. This error is most often caused by having no connection to the Internet or a misconfigured network. It can also be caused by an unresponsive DNS server or a firewall preventing Google Chrome from accessing the network.

I obviously do have a connection to the internet as i can access any other site. I did notice that my wordpress was automatically updated on the 19th of Februray to 4.1.1 and this is around the time of the crash. I do not know if this is related in anyway. I have cleared all cookies and caches with no results. Also the email that is connected with the website was a free trial and it stopped working but i have since paid for it and it works again but the website still does not work and i can not even access my login page..

Can someone please tell me what is going on? This is part of a University Project so it is very important to me!

Thanks you , Sam