org.jitsi.jicofo.jigasi.TranscriberManager.log() Unable to invite transcriber due to no Jigasi instances being available

Hello dear developers. Stucked with same issue as others. Trying to configure closed captions button.
Mannualy i am able to invite jitsi transcribe, but by closed captions getting such errors at jicofo.log

Jicofo 2020-07-26 19:18:08.624 SEVERE: [200] org.jitsi.jicofo.jigasi.TranscriberManager.log() Error finding room for null
Jicofo 2020-07-26 19:18:08.624 INFO: [200] org.jitsi.jicofo.jigasi.TranscriberManager.log() Attempting to invite transcriber
Jicofo 2020-07-26 19:18:08.625 WARNING: [200] org.jitsi.jicofo.jigasi.TranscriberManager.log() Unable to invite transcriber due to no Jigasi instances being available
org.jitsi.jicofo.jigasi.TranscriberManager.log() Unable to invite transcriber due to no Jigasi instances being available

This is a pure clean jitsi-meet install + jigasi

Is anybody able to guide me with step by step. I know that i must configure xmpp account and register it through json rest api. Am i right?