Finder can’t find a way to work
Generally speaking this should happen rarely. That it happens with great regularity points to something wrong with the system. The easiest, first step, would be to use a utility like Onyx. Run the automate tab with no apps running and reboot. It will clean caches, do maintenance scripts and verify files.

If that did not fix it I would then look at the possibility that the Finder and Safari preferences files are corrupt. Look for said files in ~/Library/Preferences and /Library/Preferences. Move anything with safari and finder in the name to the desktop and reboot.

If you are still having problems I would find and download the latest "Combo updater" for your version of macOS. Run it, and reboot when asked. That should repair any problems with the Safari and Finder apps.

Still not working? Hmmmm.... well try those first