What was the major cause of problems with the sharecropping system?

farmers’ continual debt

lack of fertile land

insufficient livestock

fierce competition among farmers

The major cause of problems with the sharecropping system was farmers' continual debt. Sharecroppers often did not earn enough from their crops to pay off their debts to landowners, leading to a cycle of poverty and dependency on the landowner. Additionally, landowners would often charge high interest rates on loans or supplies, further trapping sharecroppers in debt.