Twitter API outage
Incident Report for AgoraPulse
Twitter confirmed their bug is now fixed:
Thanks again for your patience
Posted Oct 02, 2019 - 16:53 CEST
We’re currently impacted by a global API Twitter outage, as you can read here

Unfortunately, this means that we cannot synchronize your inbox or publish some tweets, randomly.

We apologize for this issue which is outside of our control
Posted Oct 02, 2019 - 09:55 CEST
This incident affected: Twitter Publishing & Data Processing.