Error in loginput

Hello everyone, I use a translator because I speak French and my English is not the best. My problem is that no matter what version of Unreal Engine I install, every time I open a new project, I have a lot of error messages in the loginput at the bottom of the screen. Sometimes it tells me that I am missing a core but it is false, sometimes I am missing functions in the edit tool (eg: the settings at the top right is never there) so I cannot access certain options. Lots of other things but it would be too long to explain. I tried deleting everything and reinstalling everything and there are still error messages… etc. Could someone help me resolve all this please?