Clear your cache. If you’re experiencing issues getting search results or accessing the page, try to clear your browser cache to make sure you’re not getting an older version of the page. https://www.pcmag.com/how-to/how-to-clear-your-cache-on-any-browser
Refresh your browser. If you are still seeing the paywall page after signing in to Patreon, try to refresh (CTR+R / CMD+R) the page again.