Hi, I'm new to supertokens and am following the Next.js docs to integrate it into an existing project. I've made it through steps 2 and 3, and I can view the login widget at /auth. However, I can't use email/pw or social signup or login, and I keep getting the error

Error: ThirdPartyEmailPassword recipe has already been initialised.

Any ideas what I might be doing wrong? (I can paste the full callstack if that's helpful.)