You have added feature to add custom game port when stats running on different one to make 'connect' button to work
my serv stats runs on 2996x port and game on 2796x, ima going to panel and fill up 'game port' value to 2776x so 'connect' button show correct value and works as it should
but i have noticed that this thing getting reset back to qmzstats-port value after some hours.

still cant get why and when and how its happens.

check it