We hope it never happens, but it's sensible to have a plan in place.
If the worst happens, a third-party would step in and continue to run the loans you're invested in. They get paid from the loan servicing fee, so your investment runs as normal.
We have no claim over your money, as your loan contract is between you and the borrower. So while you won't be able to automatically reinvest or buy any new loans, your repayments of capital and interest will continue as normal each month until the loan matures.