Problems after trial

I have paid for a years subscription to Lightroom, my trial has finished but I still can't edit my photos and it says buy product. My computer can't download the new version as it not supported, when I try to use the web version it freezes on loading every time i load it. I have tried the following:

Logged out, Logged in again

uninstalled old appand reloaded new app

reset prefrences.

I am using Mac version 13.1.2, my Mac wont let me update as my computer is to old.

Thanks in advance for and tips and advice