ITIL4-certified problem management capabilities in IT Service Management (ITSM) identify the root cause of the issue and help to correct them to avoid similar problems in the future. Problem management minimizes the risk of potential downtime.
Here's a an example from our experience with Penny Market, one of our ALVAO customers. They were dealing with a surprising number of IT issues and, after analyzing the data, they found that 20% of all their reported incidents were due to faulty printers. Therefore, they decided to upgrade to better printers and put a solid Problem Management process in place.