My Keynote have a problem you can help me please.

Hey BariiZBeeR, 

I see that the Keynote app on your Mac is not working properly.

If you've tried restarting the Mac and the Keynote app still isn't working properly, try starting the Mac in safe mode to see if the same behavior persists. This can help determine if the issue is possible login items. Be aware that internet access is limited in safe mode, but sometimes just starting in this mode and then restarting normally can resolve issues: Use safe mode to isolate issues with your Mac - Apple Support Depending if the issue happens in safe mode or not, the resource above has appropriate steps to take going forward.

If that doesn't help, try creating a test user account and see if the issue persists. Creating a test user account can help determine if the issue is caused by other third-party software on the main user account: How to test an issue in another user account on your Mac.

Keep us updated. Cheers!