How to troubleshoot error messages....? Uncaught TypeError:

Configuration
1

I dont even know where to begin…

## Log Details (ERROR)

Sat Apr 20 2019 14:28:31 GMT-0700 (Pacific Daylight Time)

http://192.168.1.246:8123/frontend_latest/f61a7beea96bffc9958b.chunk.js:4466:617 Uncaught TypeError: Cannot read property 'style' of null
2

anyone know about this file?

3

Are you using custom cards for lovelace? If so, update them.