Try to remove com.apple.systemuiserver.plist again, shutdown computer, wait few hours, run the safe mode then restart computer -> Fixed? Now it’s seems like working without problem But not sure if it’s happened again

Feb 06, 2013 Everything 'not responding' in Windows 10 - Microsoft Jan 15, 2018 Windows 10 - Windows 10 Programs Constantly Not Responding

Feb 15, 2007

Oct 04, 2017 6 Fun and Cool Mac Terminal Commands to Try in 2020! Jun 22, 2020

Dec 08, 2014 · Mac OS X - The Menu bar is not responding In the case that the Menu bar of Mac OS X has stopped responding (unable to click or unresponsive), don't panic! Open a terminal and type the following command to kill/restart the unresponsive processes: killall SystemUIServer

OS X system menu extras stop responding - CNET