How do I fix my blog posts? They’re throwing 404 errors.

When WordPress updated to version 6.0 some older blogs experienced issues with permalinks. The posts exist, but when clicked they return 404 “page not found” errors. To fix this go to Settings in the dashboard and click on Permalinks:

Change the setting to “Plain” (or another setting if it is currently set to “Plain”), save the setting, and then set it back to the desired setting. This will fix the issue.