In Eosbetdice contract, https://gitlab.com/EOSBetCasino/eosbetdice_public/blob/master/EOSBetDice.cpp#L193
The code of the contract in this line should be "eosio.token". I wonder why it doesn't get "cannot modify objects in table of another contract" error as it is trigger by contract eosio.token and trying to create new record in other contract's table.