Qnap system

Hello Friends i need help setting up my Home assistant with supervisor i was running this on a pie system but it appears that after adding all my devices it has become unreliable. i was able to follow some instructions and install it on the qnap system but i do not have the supervisor tab on the left. i will say i am new to this too. is there any one that can point me in the right direction to get this working right ? thank you in advance