Redo command is outline visible/hidden instead

Hi, why my shortcut key command+y is not redo ? The action is Outlines visible/hidden instead? How do I fix this?

This is because the redo uses the Shift + Cmd + Z shortcut.

It works! thanks. But is there a way I can change my command+y into redo action instead of outlines visible?

do you also have any idea why my shortcut key save not functioning? It works before but it didn’t work yesterday until now.

what is happening to the shortcut keys? XD Do you think I pressed something?