Below are some ways you can approach the answer: 1-> Find the problem using a framework, say 5 Whys or Fishbone Diagram etc. Root cause analysis can also help. 2-> Zone down on the issue and analyse, is it a company wide trend, regional trend, industry trend, seasonal trend etc., i.e., try to localise the problem and then address it. 3-> See whether it was a process error, human error, technical defect, information error etc. 4-> Can you replicate the same situation to study the issue and cause?

I'd look at what the end goal was. What the soulion would achieve and work backwards from there. What is blocking us from the end goal. Why are they blocking us from the end goal.