Anybody have a corsair nightsword RGB? Trouble with reassembly

[Hakamedaa]

I've got that mouse, My cat had awhile ago spilled pepsi on it and the buttons got sticky. I finally had the energy to go take it fully apart and clean it and i got everything back together except one part. Anyone else who opened there mouse or would open it to find out. I suspect its got to do with the main mouse clicks and the side buttons. All the buttons work after reassembly. But the clicks feel off. And those ones used to work. I tried to find guides or teardowns. But none of them have pics of the part i suspect is missing. It should be the top half of the mouse, Under the Left/Right/Middle and side buttons on top. I'll attach some pics. It's driving me crazy

 

[OddOod]

Welcome to the forums!
Can you take it apart again and look for any pegs in the top shell? It looks like those white bits have holes on which they should pivot