When you try to contact paypal regarding this problem,,you will get some kind of answers like this.I think they are currently updating their systems
"Upon carefully checking your account you do not have a sending limit since you already confirmed your card. The error message that you received is not correct. We are currently updating our systems and, as a result, you might receive incorrect messages. We're aware of this issue and we would like to assure you that our technicians are actively working to resolve it.
If you tried to send a payment with your credit card or your prepaid card but it has been refused by the issuing bank, attempt to send your payment at another time. It is possible that the issuing bank could be temporarily unavailable to answer the authorization request sent by
PayPal. If an authorization response from the issuing bank is delayed, the request will not be processed and the status of the payment attempt changes to a decline on your PayPal account. In this case, we ask that you contact your issuing bank and request to speak with someone who works with online transactions for more information regarding the denial."