bug: errors from faucet are wrongly parsed and returned as [object Object]

[elboletaire]

Describe the bug

When the faucet API returns an error of any kind, it returns a json object of type {error: string}, but the SDK seems to be casting it to string, since errors are returned as [object Object].

To Reproduce

Making a faucet request twice should show the issue, since it should trigger the cooldown error.

Current behavior

A [object Object] string is received as error.

Expected behavior

Receive the proper string from the .error field.