Could you please explain what exactly you're planning to do?
We don't know how the api from events.ham-yota.com works. Maybe you posted the question at the wrong Repository?

turning on my crystal ball:
Assumption: You want to transport QSOs you made with Wavelog to the YOTA Eventpage?!
If so. Steps to do that:

1. Have a look at https://github.com/wavelog/wavelog/wiki/API#apiget_contacts_adif - our wiki describes how to export QSOs
2. Try to get the infos about the Yota-Page/Tool, how to post adifs to it
3. Build a small tool, which exports the QSOs made (see 1 here) and uploads the same data (see 2 here) to yota.