Synology DSM 6.1 (xpenology) Lets Encrypt ACMEv1 to ACMEv2

If you get messages like: synoscgi_SYNO.Core.Certificate.LetsEncrypt_1_create[5038]: certificate.cpp:957 syno-letsencrypt failed. 200 [new-req, unexpect httpcode] synoscgi_SYNO.Core.Certificate.LetsEncrypt_1_create[5038]: certificate.cpp:1359 Failed to create Let’sEncrypt certificate. [200][new-req, unexpect httpcode]