Game booster panel missing in notification panel

[Hapaboss]

While playing pubg, cod or any game added in game launcher ;the previous game booster panel is not showing in notification panel. What should I do??

EDIT1: PROBLEM RESOLVED. THANK YOU SO MUCH MEMBERS FOR HELPING. I HAVE TO DISABLE FULL SCREEN NAVIGATION PANEL, THAN I GOT GAME BOOSTER PANEL ONLY. 

[Hapaboss]

I have restart phone, cleared data of game booster, launcher, optimization service. Added games in game launcher, still. No. Solution

[sa51]

once check whether it is in navigation bar

[Anonymous]

Did you check for updates? Wait for galaxy store to respond then check again..

[Hapaboss]

Yes I have already, galaxy store worked. Last update came 2-3 weeks ago

[Arun30]

refer above

[deepesht4]

yah

[xXearthXx]

Why I don't have game booster, I'm using galaxy a03