All modern businesses require some form of insurance related to their specialized industry, and non-profit businesses are not different. Just because your company isn't focused on making profits does not mean it doesn’t require business insurance. In fact, non-profit companies can face unique risks. As noted by Risk Management, many nonprofits lack Directors and Officers Liability Insurance, which helps protect board members from personal liability if a lawsuit is brought against the non-profit.
Board members aren't the only ones at risk. If your non-profit's funds are drained, it can be hard to continue your normal operations until you can acquire more funding. Donors may be hesitant to continue supporting any non-profit that's fallen into legal or financial trouble.