    function participate(uint256 _tOLPTokenID) external whenNotPaused nonReentrant returns (uint256 oTAPTokenID) {
...

        TWAMLPool memory pool = twAML[lock.sglAssetID];
        if (pool.cumulative == 0) {
            pool.cumulative = EPOCH_DURATION;
        }

@>      if (!tOLP.isApprovedOrOwner(msg.sender, _tOLPTokenID)) {
            revert NotAuthorized();
        }

       {
@>        bool isErr = pearlmit.transferFromERC721(msg.sender, address(this), address(tOLP), _tOLPTokenID);
            if (isErr) revert TransferFailed();
        }
    function participate(uint256 _tOLPTokenID) external whenNotPaused nonReentrant returns (uint256 oTAPTokenID) {
...

        if (!tOLP.isApprovedOrOwner(msg.sender, _tOLPTokenID)) {
            revert NotAuthorized();
        }

        // Transfer tOLP position to this contract
        // tOLP.transferFrom(msg.sender, address(this), _tOLPTokenID);
        {
-           bool isErr = pearlmit.transferFromERC721(msg.sender, address(this), address(tOLP), _tOLPTokenID);
+           bool isErr = pearlmit.transferFromERC721(tOLP.ownerOf(_tOLPTokenID), address(this), address(tOLP), _tOLPTokenID); 
            if (isErr) revert TransferFailed();
        }
