I found the guide in PancakeSwap website.  I don't see my CAKE-BND LP token in V2.  I need to follow the PancakeSwap v3 Migration(Migrate to continue farming CAKE rewards and earning trading fees).  I click Remove V2 Liquidity and see my 7.82 CAKE-BND V2 LP.  I am sucessfull to stake CAKE-WBNB LP in PancakeSwap V3 Farming.