Hi I cant open Lightroom, my subscription is up to date, but it keeps telling me, my trial has ended

What version of LR classic?

Opening or not being able to open LR Classic has nothing to do with an active or inactive subscription. With either you should be able to open the LR Classic window.

So please state, or post a screen shot of, exactly what you are seeing.

Revert to trial https://helpx.adobe.com/manage-account-membership/cc-reverts-to-trial.html may help
-and troubleshooting FAQ https://community.adobe.com/t5/Get-Started/Troubleshooting-FAQ-What-should-I-do-if-I-have-a-membership-but/td-p/7601068
-and https://helpx.adobe.com/creative-cloud/kb/cloud-website-shows-trial-purchase.html