Updating Plugins
Check if there are any plugins with updates
If there are plugins to update, you can select update them all.
After the update has complete, go back to Updates page as there can sometimes be Theme updates after the fact
Once all updates are complete, visit the Site Health page and let it run a test (should happen automatically)
If you see warnings that match the image below, you can ignore them.
If the Site Health is good to go, you have one step left, purge the cache.
To purge the site cache, visit this page. You’ll see an “Empty All Caches” button. Click that.
Voila! You’re finished.
Troubleshooting
If the website isn’t updating after a change or plugin update, or it the payment system isn’t working, you may want to try a server cache purge through WPX.