@alvin
Hi
Vielen Dank für deine Mühe, also werde ich versuchen Verschiedene pacman zu bekommen und einfach testen.

Danke ☺️

@himew hello
You have several possibilities :

you connect a real keyboard and mouse (for all former computers, you should get a mouse/keyboard combo, it's quite usefull. Bluetooth ones work fine). or you edit a pad to keyboard file (.p2k file) where you can assign mouse button or keys to a button on your pad.
See this doc : https://recalbox.gitbook.io/documentation/v/francais/usage-avance/pad-to-keyboard (use a translator, the english version is still in progress)

@Zing Thanks for your answer. I made a check, it found an error, but it didn't change anything. So I reinstalled from scratch, it rebooted, but after I said the storage is ANYEXTERNAL, same pb.
Then I said to myself maybe it's the USB key which had a pb.
Then I scanned it and it found some corrupted sectors and repaired it, now it works again.

Thanks for your help, have a nice day!

Il tourne bien avec fba_libretro chez moi, essaye cette version