127.0.0.1 refused to connect.

[Old-and-confused]

Hello,
I'm in my 70's and have been a practising artist all my life. Recently I became very interested in AI generated art having seen some stunning images. I tried and failed to download automatic1111 several times until I realised that my laptop didn't have the necessary specs. So I bought a laptop which did, dedicated graphics card, enough RAM etc. A couple of weeks ago after jumping through numerous hoops and much to my delight I successfully installed automatic1111. I tried it out and had awful results so I left it. A few days ago I watched some tutorials on youtube and decided to try again. I tried to go to 127.0.0.1:7860, which had worked shortly after I installed automatic1111, only to find that I can no longer connect, why?. I just get a message which says
'127.0.0.1 refused to connect'. Apparently this 127 address is a localhost, I don't even know what that means. I am very non tech savvy so I was inordinately pleased with myself for managing to install automatic1111, I am now very disappointed that it seems to have been in vain. Why is it now refusing to connect, what has changed since I installed it?. Most importantly can I fix this?. Your help would be greatly appreciated, if anyone answers please remember (as I mentioned) I am not tech savvy, thank you,