[SOLVED] Can't renew certificates after expiry

[wisbit]

Hi all,
I've been using traefik with letsencrypt to generate certificates for each of my subdomains.
It worked well, until they expired. So I followed a few tips and tricks online, I emptied my acme.json file and restarted the traefik container.
However it doesn't seem to do the trick, I get these errors

acme: cleaning up failed: namecheap: Invalid request IP: 91.86.42.31 [1011150] lib=lego

Unable to obtain ACME certificate for domains error="unable to generate a certificate for the domains [subdomain.mydomain.org]: error: one or more domains had a problem:\n[subdomain.mydomain.org] [subdomain.mydomain.org] acme: error presenting token: namecheap: Invalid request IP: 91.86.42.31 [1011150]\n" ACME CA=https://acme-v02.api.letsencrypt.org/directory acmeCA=https://acme-v02.api.letsencrypt.org/directory domains=["[subdomain.mydomain.org](http://subdomain.mydomain.org)g"] providerName=letsEncrypt.acme routerName=athena@docker rule=Host(subdomain.mydomain.org)

This is the traefik bit my docker-compose.yml
labels:
- com.centurylinklabs.watchtower.enable=true
- traefik.enable=true
- traefik.http.routers.container.rule=Host(hemingway.${DOMAINNAME})
- traefik.http.routers.container.entrypoints=websecure
- traefik.http.routers.container.middlewares=chain-authelia@file
- traefik.http.routers.container.service=container@docker
- traefik.http.routers.container.tls=true
- traefik.http.routers.container.tls.certresolver=letsEncrypt

This is traefik config

websecure:
    address: ":443"
    http:
      tls:
        certResolver: letsEncrypt
        domains:
          - main: "domain.org"
            sans:
              - "*.domain.org"

certificatesResolvers:
  letsEncrypt:
    acme:
      email: myemail
      storage: /acme.json
      dnsChallenge:
        provider: namecheap

I'm completely lost as what I can do to fix this. Any pointers or guidance would be most welcome.
Cheers.

[wisbit]

Just so that if someone gets the same issue.

The issue was about the IP, my public IP, was blocked by Namecheap because not whitelisted.
My public IP had recently changed after staying the same for ages, and Namecheap API blocked the request.
Once the new IP whitelisted on the Namecheap website, all was well !