Twake-Connectors onlyoffice how to start?

linagora/Twake-Connectors: Twake Connectors you can plug into Twake. (github.com)

I tried to run it, but it doesn’t work. I see an empty onlyoffice icon

Hi, those connectors are for older Twake version (PHP based).
You want to run twake in PHP mode and properly configure the settings to use onlyoffice.