fix running on port already in use
fix running on port already in use

deniszgonjanin/datacats,deniszgonjanin/datacats,JJediny/datacats,JJediny/datacats,dborzov/datacats,datacats/datacats,datacats/datacats,reneenoble/datacats,JackMc/datacats,datawagovau/datacats,poguez/datacats,florianm/datacats,JackMc/datacats,poguez/datacats,reneenoble/datacats,florianm/datacats,wardi/datacats,datawagovau/datacats,wardi/datacats,dborzov/datacats