i just made my pngtuber but i cant get it into obs HOW do i do it

You can add a game capture in obs and in pngtube remix, you can select preview from modes if you are on 1.4 or pngtube if on 1.3.5

ah thanks it worked but there is a problem i cant open files 

I use a window capture and reduce the size of the PNGTUBER Remix window then adjust the capture window size in OBS. This is a separate scene on top of either my gaming scene or my art program capture scene in the same source Idk if this is correct but it works for me :3