"unable to create/renew a HTTPS certificate..." message

[Sat Sep 18 08:27:59 2021 GMT - Renewal Loop] Domain List (1 domains) = skwimtm.org [Sat Sep 18 08:27:59 2021 GMT - Renewal Loop] Crypt::LE Module Version = 0.36 [Sat Sep 18 08:27:59 2021 GMT - Renewal Loop] Let's Encrypt API version = 2 [Sat Sep 18 08:27:59 2021 GMT - Renewal Loop] Loaded/generated Let's Encrypt account key. [Sat Sep 18 08:27:59 2021 GMT - Renewal Loop] Loaded/generated private key for Certificate Signing Request (CSR) and loaded/generated encrypted CSR for these domains [skwimtm.org]. [Sat Sep 18 08:27:59 2021 GMT - Renewal Loop] Registered/re-registered with ACME server and accepted Terms of Service. Account ID = 14899026 [Sat Sep 18 08:27:59 2021 GMT - Renewal Loop] Created token file [/tmp/certvalidation/acme-challenge/_l79yIbGGKJ9b0enmNHyK3_k0v00r7RTOB8TxEQZa_o] for domain verification. [Sat Sep 18 08:27:59 2021 GMT - Renewal Loop] Created token file [/tmp/certvalidation/acme-challenge/DMGLTleGBiyv6eSC_GKhpV5XqaJXcZ9IuE_pIBtQNoI] for domain verification. [Sat Sep 18 08:28:01 2021 GMT - Renewal Loop] Domain verification results for 'skwimtm.org': success. [Sat Sep 18 08:28:01 2021 GMT - Renewal Loop] Deleted token file [/tmp/certvalidation/acme-challenge/_l79yIbGGKJ9b0enmNHyK3_k0v00r7RTOB8TxEQZa_o] used for domain verification. [Sat Sep 18 08:28:04 2021 GMT - Renewal Loop] Domain verification results for 'www.skwimtm.org': error. DNS problem: NXDOMAIN looking up A for www.skwimtm.org - check that a DNS record exists for this domain [Sat Sep 18 08:28:04 2021 GMT - Renewal Loop] Deleted token file [/tmp/certvalidation/acme-challenge/DMGLTleGBiyv6eSC_GKhpV5XqaJXcZ9IuE_pIBtQNoI] used for domain verification. [Sat Sep 18 08:28:04 2021 GMT - Renewal Loop] Could not generate the certificate--request_certificate() failed: Could not finalize an order.