How are you joining Maverick Workforce?

I have an invite link

Open the link your organisation sent you — it looks like maverick-workforce.fly.dev/register/…. It will tell you exactly which organisation you're joining before you submit anything.

I don't have an invite link

Maverick Workforce doesn't guess which organisation you belong to — there's no generic sign-up that puts you into an organisation automatically. Ask your manager or your organisation's administrator for a registration link.