Renew SSL: Too many redirects

I received another error
./certbot-auto has insecure permissions!
To learn how to fix them, visit Certbot-auto deployment best practices
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Cert is due for renewal, auto-renewing…
Renewing an existing certificate
Performing the following challenges:
http-01 challenge for crabwp.com
http-01 challenge for www.crabwp.com
Using the webroot path /var/www/html for all unmatched domains.
Waiting for verification…
Challenge failed for domain crabwp.com
Challenge failed for domain www.crabwp.com
http-01 challenge for crabwp.com
http-01 challenge for www.crabwp.com
Cleaning up challenges
Some challenges have failed.
IMPORTANT NOTES:
- The following errors were reported by the server:
Domain: crabwp.com
Type: dns
Detail: No valid IP addresses found for crabwp.com
Domain: www.crabwp.com
Type: dns
Detail: DNS problem: NXDOMAIN looking up A for www.crabwp.com

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