NTR questions

Hi its my first time posting here

I need help with the NTR i tried to install this in my Old3DS a nd i put the plugins in the SD with no problems but when i start the ntr this open normally and i can open the menu in the main menu of the console pressing x+y but when i start a game obviously after start the NTR the menu dont open inside the game i press x+y and nothing, i press select and nothing plsss help