The issue has been resolved, and you should now be able to successfully log into Zapier.com. The incident started today at 17:57 UTC and was resolved at 19:05 UTC.
Due to this incident, roughly 270,000 webhooks were dropped resulting in missed automations. If you believe that your Zaps may have been affected, we recommend that you either re-trigger your Zaps with the same information or utilize Transfer by Zapier to import affected data. You can find out more about using Transfer by Zapier here:
We're currently investigating an issue where users may have trouble logging in to Zapier.com. There may also be errors on Zap runs at this time. Unfortunately, there is no known workaround at this time.
The incident started today at 17:57 UTC. We're working on identifying the cause and will provide updates as soon as we have more information.