Webinars are no longer syncing over

I’m not exactly sure when this started happening, probably within the past couple of weeks. I have 6 webinars that show up on the dashboard. Most of them the date has already passed. We have a lot more webinars set up in GoToWebinar but they won’t sync over. I have tried numerous things; getting new access token, trying the plugin on my local development site. Nothing seems to be working and I’m not sure what is going on.