https://phys.org/news/2018-11-russia-bug-international-space-station.html

The agency emphasized that the computer problem wouldn't affect the station's crew—NASA's Serena Aunon-Chancellor, Russian Sergei Prokopyev and German Alexander Gerst. It said two other computers can maintain the station's operation.

The glitch follows last month's aborted launch of a new station crew. NASA astronaut Nick Hague and Roscosmos cosmonaut Alexei Ovchinin landed safely after their Russian booster rocket failed two minutes into the Oct. 11 flight.