My blog/site refuses to connect and is unreachable

Hello, and thanks in advance for reading. Last week, I originally stumbled across the problem when trying to log in to my blog in the middle of the night. I thought that it was just an update that was stopping me from logging in, so I ignored it. However, today, for the past couple of hours, I have nearly almost destroyed my computer. THIS IS SO FRUSTRATING!! When I go to my blogsite (https://kjandcompany.co), it says that it is unreachable. I have already ruled out that this is not a proxy, isp, modem or connection, or firewall error, nor is it a chrome error. I just simply cannot connect to the blog. I know a little techy stuff, but not enough to help me thru this error. So please, I need some help!

thank you.