I opened my PayPal account since 2015but has been dormant for long. Now I updated it but I can't receive money on it because my clients can't access my account
The option to receive paypal payments is sadly not available in Nigeria. You can only send payments for purchases funded by your (confirmed) credit card.
Paypal varies a lot country to country and can only offer the services that the banks / governments of that country allow it to offer. There are quite a few countries unable to receive paypal payments.
