fix.sol

 function repayLoan(ERC20 token_, uint256 amount_) external nonReentrant {
    if (reserveDebt[token_][msg.sender] == 0) revert TRSRY_NoDebtOutstanding();

    // Deposit from caller first (to handle nonstandard token transfers)
    token_.safeTransferFrom(msg.sender, address(this), amount_);

    // Subtract debt from caller
    reserveDebt[token_][msg.sender] -= amount_;
    totalDebt[token_] -= amount_;

    emit DebtRepaid(token_, msg.sender, amount_);
  }