Paypal checkout is failing
I have a site which I've been working on for around a year now. It's almost at the point of going live - in fact some of the site is already being promoted by our client - but I've just tried to process a transaction for the first time in a couple of months and it's failing. When the Paypal popup loaded I got the following error:
array(22) { ["PCMS_ActivationError"]=> string(115) "There was a problem verifying your serial number. Please contact sales@webassist.com in order to fix this problem." ...followed by further error messages which I've included in the attachment (Error 1).
I've re-input my serial no. into the database but I'm still getting errors - either an internal server error message, or another activation error. Could you take a look for me? Error messages and URL details in the attachment.