just updated libraoffice to version 18.104.22.168 and now nothing works
First check if actually nothing works, or possibly there’s something. Look outside: possibly some cars still run? cranes are moving? then check if your lightbulbs in your room are OK: could it be that replacing them would at least make light work for you? If not, check your local electricity supplier’s office and ask if there’s some planned or unexpected outage? Call plumbers: they might fix water supply. Make sure to buy diesel generator to have fridge working: it’s essential to have fresh food! And please check how could something still work for you if you were able to type your question to this site!
… and may be installing LibreOffice will fix the problem.
Don’t worry, be happy and ask a good question.