Why all these errors?

Running 0.72.0 and i get tons of these:

2018-06-23 10:10:51 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 10:15:02 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 10:16:06 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 10:18:10 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 10:21:11 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 10:36:32 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 10:45:43 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 10:51:39 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 10:52:14 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 10:57:14 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 10:59:40 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:00:14 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:01:44 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:03:14 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:04:44 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:06:15 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:07:24 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:07:44 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:10:20 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:10:44 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:12:15 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:13:07 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:13:42 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:13:52 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:14:17 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:14:18 ERROR (MainThread) [homeassistant.components.device_tracker.tado] Cannot load Tado data
2018-06-23 11:14:19 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:15:03 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-06-23 11:15:36 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting

What’s the problem? How to get rid of these?

I have the same problem.
Morover the resetting trigs my tasmota mqtt device