Bot leaks webhook token on timeout

[mat-1]

Right now when Discord goes down and the bot tries sending a message through a relay webhook it shows an error that contains the full webhook URL. This is not ideal when it's a public server with many people (since it can be used to ping everyone, etc).

Here's how the error looks:

(that webhook url isn't valid anymore)

I think ideally it should just censor the token, or alternatively it could just not show the URL at all.