SuperTokens is an open source authentication solution offering features like: Different types of login: Email / password, Passwordless (OTP or Magic link based).

SuperTokens.com

When I log into the dashboard (using AWS lambda), I get 500s on a few APIs, checking the lambda logs I see this:
`Error: SuperTokens core threw an error for a POST request to path: '/recipe/dashboard/session/verify' with status code: 400 and message: Field name 'sessionId' is invalid in JSON input`

What might be going wrong?

Ah, looks like it is a paid feature and that's why.

I need to delete some users, what is the best way to do this?

Which version of the backend SDK and core are you using?

SDK: "supertokens-node": "16.4.0"
CORE: Development Environment (v7.0)

Could you open an issue about this with the details about the SDK and core version as well as your backend supertokens.init? We will try and replicate the issue