Problem with lutris

hi, i am new on Lutris
i have Endless Os 3.8.4
and Lutris updating it right now
games doesn’t launch and when i tried to see whats the problem by running it from terminal this message appeared :
Unable to load locale dir, translations won’t work.
2020-08-09 14:58:53,807: Couldn’t find a terminal emulator.
2020-08-09 14:58:56,657: MAME XML generation launched in the background, not returning anything this time
2020-08-09 14:58:56,658: Getting full game list from MAME…
2020-08-09 14:58:56,693: MAME isn’t installed, can’t retrieve systems list.
2020-08-09 14:58:58,566: MAME XML written

any ideas or solutions for my problem ?