How to manage unseen situations with employees in the office?

tips
team-engagement
conflict-resolving

#1

While my team is small, it was easier to manage with unseen situations people taking a day off or resolving conflicts with colleagues, since it was a close-knit team and reinforcing values in our team. But it has become chaotic and difficult to be agile and managing the same unseen situations now?
Can you help me how to manage and create a handbook of managing unseen situations with employees?