No. Your earnings are safe and secure in your account. 

• If your past month’s earnings were less than 50 INR then it will be appearing in your current month’s earning section.
• If your past month’s earnings were 50 INR or more and you have provided your bank account details on time then it is on it’s way to be deposited into your bank account. 
• If you have not given your bank account details yet, then don’t worry this amount has been carried forward to your current month’s earnings.