Below steps should give you clarity:

1. Conduct due diligence - only after having this report, you know what to plan next.

2. If the business is genuine, then develop strategies to:
a) secure your investment by implementing an Internal Control system, legal document, and business structure.
b) cash flows strategies to set payment in a secure manner.
c) implement a risk management system and contingency plans.
d) an exit strategy

Good luck