Can you help me about this error

[A Former User]

@fonfon
Use Etc/GMT+1 instead Etc/GMT+01.
But, this modifying only can fix your front-end error of Moment Timezone has no data for..., not your UnhandledPromise... error in the background-server.
You should remove modules one-by-one to figure out which module is causing that error.

[A Former User]

@fonfon
And Could you tell us which modules are in your config.js?

[Fonfon]

OK guys i think i find my problems:

You have included the Google Maps JavaScript API multiple times on this page.This may cause unexpected errors
The google trafic module is the cause

An idea to fix it ?

thanks

[A Former User]

@fonfon
First, I think you’d better ask the creator on Github.
Second, Have you registered that module once?

[Fonfon]

Hi,

ok when i started only MMM-GoogleMapsTraffic in dev mode:
Dev say i start with 5 keys but in my config file i have only one !
what is the problem ?

thanks