Log flooded with TTS errors (38.2)

Suddenly my logs are flooded with below error:

17-02-13 21:36:46 ERROR (MainThread) [homeassistant.components.tts] Error on load tts: Wrong tts file format!

I only have Google TTS platform which has been working (and is working) fine. Even with 38.2

Below is in my config:

tts:
  - platform: google
1 Like

I have the same problem. The service works, but with this error:

Logger: homeassistant.components.tts
Source: components/tts/__init__.py:690
Integration: Text-to-Speech (TTS) (documentation, issues)
First occurred: 18:13:11 (4 occurrences)
Last logged: 18:13:11

Error on load tts: Wrong tts file format!