Quick fix: Re-save permalinks in WordPress settings
If your WordPress website has been working flawlessly and all of the sudden your links to pages &/or posts do not work, there could be an issue with your websites permalinks. The quickest and easiest way to fix this issue would be to re-save your permalinks.
How to fix it
Navigate to: WordPress Dashboard > Settings > Permalinks: Click “Save Changes” (See screenshot below)
What happens next?
This re-saves the current permalink structure and in a way refreshes the permalinks.
TAGS: Fixing wordpress 404 issue, how to fix permalinks 404 issue in wordpress, wordpress 404 error, 404 wordpress quickfix