Learn how to easily renew your domain registered with Namecheap that expires in 30 days.
Here’s the how-to video on the domain auto-renew service setup: https://www.namecheap.com/support/knowledgebase/article.aspx/10301/2257/video-turning-the-auto-renewal-feature-onoff/
Keep in mind that to ensure non-stop operation of the domain name this service should be enabled not later than one month before the domain expiration date.
If you need to reactivate the domain that already expired, feel free to follow this guide: https://www.namecheap.com/support/knowledgebase/article.aspx/241/2201/how-can-i-renew-my-expired-domain/
You can also check out the following knowledgebase article: