CF: You have a high sum of balances on collection agency accounts.
Some collection agencies report account information to credit bureaus just like lenders do. Your credit file indicates the amount of money you owe to collection agencies is high. Unpaid collection accounts in your file can have a significant negative impact on your credit score.
Satisfy all collection accounts and pay all other accounts on time each month. The impact that negative items such as collections accounts have on your credit score will diminish over time.