The plugin menu

Plugins → Levoit Purifier

Item	What it does
Refresh All	Reads every purifier now instead of waiting for the next check.
List Account Devices	Writes a line to the Event Log for each air purifier on the VeSync account, saying how it is and whether it is in Indigo yet.
Test Connection	Writes the plugin’s details to the Event Log, signs in, and says whether that worked and what is on the account. The details are what to paste into a forum post if you need help.
Show Plugin Info	Writes the plugin’s version, Indigo’s version and the Mac’s details to the Event Log.

Your email address only ever appears in the log shortened, as c***@example.com, and the password never does.