It seems like there is an issue with the upgrade from Lemmy version 0.18.5 to 0.19.2 where the old login cookies are not accepted any longer and right now the only way to fix it is to manually delete the old cookies for slrpnk.net from your browser storage and log in again.
For Firefox: Settings > Privacy & Security > Manage Data... > Deleting Slrpnk.net
For Chrome: Settings > Privacy and Security > Third-party cookies > See all site data and permissions > Search for slrpnk.net > Click trashcan icon
For Edge: Settings > Cookies and site permissions > manage and delete cookies and site data > See all cookies and site data > Search for Slrpnk.net > Click little 'v' dropdown arrow > Click trashcan icon
Edit: the Lemmy devs identified the issue and it will require another bugfix release that will hopefully happed soon.
@silence7 Thanks for the tip. It's still giving me issues with the browser I usually use but a different browswer worked so i guess i just have to keep clearing cookies and logging out of apps / back in until i can find a better way
@silence7 even when i get to a log-in page from my usual browser it says incorrect log-in which isn't true and some client apps either can't log out or can't log in so it's gonna take a while to get me fully back with this it seems and it's pretty frustrating