Renew cert - error

Question
1

what i need to to?

this is the log file:

2021-07-04 12:27:40.705 +03:00 [Information] Beginning Certificate Request Process: SBS Web Applications
2021-07-04 12:27:40.922 +03:00 [Information] Attempting Domain Validation: golan-gate.co.il
2021-07-04 12:27:43.221 +03:00 [Information] Could not begin authorization for domain with Let’s Encrypt: golan-gate.co.il System.UriFormatException: Invalid URI: The URI scheme is not valid.
at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
at System.Uri…ctor(String uriString)
at ACMESharp.AcmeClient.GetDirectory(Boolean saveRelative)
at Certify.ACMESharpCompat.ACMESharpUtils.NewIdentifier(String alias, String dns, String vaultProfile)
at Certify.VaultManager.BeginRegistrationAndValidation(CertRequestConfig requestConfig, String identifierAlias, String challengeType, String domain)
2021-07-04 12:27:43.226 +03:00 [Information] Validation of the required challenges did not complete successfully.
2021-07-04 12:30:56.377 +03:00 [Information] Skipping Renewal, existing certificate still OK. SBS Web Applications
2021-07-04 12:31:22.501 +03:00 [Information] Beginning Certificate Request Process: SBS Web Applications
2021-07-04 12:31:22.707 +03:00 [Information] Attempting Domain Validation: golan-gate.co.il
2021-07-04 12:31:25.334 +03:00 [Information] Could not begin authorization for domain with Let’s Encrypt: golan-gate.co.il System.UriFormatException: Invalid URI: The URI scheme is not valid.
at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
at System.Uri…ctor(String uriString)
at ACMESharp.AcmeClient.GetDirectory(Boolean saveRelative)
at Certify.ACMESharpCompat.ACMESharpUtils.NewIdentifier(String alias, String dns, String vaultProfile)
at Certify.VaultManager.BeginRegistrationAndValidation(CertRequestConfig requestConfig, String identifierAlias, String challengeType, String domain)
2021-07-04 12:31:25.351 +03:00 [Information] Validation of the required challenges did not complete successfully.

2

Hi, your version of the app is a few years old and is no longer supported. It uses the old version of the Let’s Encrypt API which is no longer active. You need to upgrade your version of the app by installing the new version: https://certifytheweb.com

3

i have server 2008 - can it work on it?

4

You need to be able to install .net 4.6.2 or higher, so it depends on that. If not you could still renew the certificate on another machine, perhaps using DNS validation (instead of http validation) using one of the supported DNS APIs or use Certify DNS (CNAME redirection), then script the import/deployment of the certificate onto the old server.

I would recommend that you urgently move your service to a new version of Windows Server. Unless you have a special extended agreement with Microsoft your server is not receiving OS updates and is at risk of malware attacks etc.