Just like any widget present on the home, we can remove the search bar from the home screen, but that does not necessarily solve the error, the error is due to the app package which provides the background for the searching. If you remove it from the home screen, you will have to use the app to search, but many searching tools like voice assistant may not perform up to their potential, so it does not really solve the problem, so either follow the fixes to get rid of it, and the issue persists you can either disable it or uninstall it.