Second step: Please enter the amount of ALP, click the button of “Unstake” to unlock the LP.
Third step: Go to the PancakeSwap page and check your holding positions, click the button of “remove”, then you could receive the responded tokens in return.
Last step: Since you remove the LP successfully and receive the $APX tokens, you could follow the above instructions to exchange your $APX tokens into $ASTER tokens.