Paypal Error

I am using Leranpress plugin in my website. I have added paypal email in payment section.
when i am checking out my course it gives error.

Error : We couldn’t complete your payment for you. To get your payments working again, Check your account or contact us.

Is this plugin error or paypal account error. I have basic paypal account not a business paypal account. Does Paypal Business Account needed for payment.

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