Below are the steps to follow:
Step 1: Login to your account and navigate to the subscription renewal page
Step 2: Select the subscription duration in the renewal page and click "Proceed to pay" button
Step 3: On the payment page, click on the PayPal button to make the payment.
Step 4: It will redirect you to the PayPal payment gateway website. Here click on the button“Pay with Debit or Credit Card”
Step 5: Select your country 
Step 6: Enter your card details and follow the payment process. You are requested to wait for a few seconds to complete the payment process and it will automatically be redirected back to the OnCloudERP application.
Step 7: Now your payment process is done and you can start using your account. All the payment information will be stored in the application and you can check by navigating to “Home---->Control Panel-----> Manage Account ----->Subscription Details”.
Please feel free to contact for any clarifications.