Let's Debug

Test result for gitlab.fkti.etu.ru using tls-alpn-01

Challenge update failures for gitlab.fkti.etu.ru in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/4918671704
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Incorrect validation certificate for tls-alpn-01 challenge. Requested gitlab.fkti.etu.ru from 194.85.169.149:443. Received certificate with unexpected extensions: "Required extension OID 1.3.6.1.5.5.7.1.31 is not present"
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for gitlab.fkti.etu.ru is: ru
Debug
4 Certificates contributing to rate limits for this domain

Serial: 360463608094152474461915775058683617236383
NotBefore: 2022-10-26 15:52:19 +0000 UTC
Names: [help.etu.ru]

Serial: 262309798977537466305920286731430193421222
NotBefore: 2022-10-26 15:19:35 +0000 UTC
Names: [online.etu.ru www.online.etu.ru]

Serial: 317982897220432086526981814935458590338218
NotBefore: 2022-10-26 08:25:47 +0000 UTC
Names: [dev.events.priem.etu.ru dev.exam.priem.etu.ru dev.indek.etu.ru events.priem.etu.ru exam.priem.etu.ru indek.etu.ru test.events.priem.etu.ru]

Serial: 346387127178453844379074732472450939932530
NotBefore: 2022-10-25 21:47:38 +0000 UTC
Names: [dev.property.etu.ru]

Debug
The current status.io status for Let's Encrypt
Operational

Submitted Nov 1 20:16:31 2022. Sat in queue for 2ms. Completed in 12s. Hide verbose information.