They’ve all been listed at https://indieweb.org/2019/Online/Schedule with appropriate links. The chat channels are the best place for immediate help. Most of the sessions have been recorded, so you can catch them after the fact.
Hopefully you got things sorted before seeing this. There was a small bump in getting things started because the video server they had planned on using had some last minute problems that prevented recording, so they switched to Google Hangouts at the last minute. Other than that, most of it has gone fairly smoothly. Sorry to hear you had issues.
I’m curious if you could document the exact problems you ran into so that we can fix them in the future. Were there things you couldn’t find on the wiki? Was it bandwidth problems? Others?