The line on Paypal IPN.php file tries to log the error to znote_paypal in the event "something is wrong", however it fails to do so because the varchar(255) limit.
Column should be TEXT or something else that supports a longer string in the event it's required to log.
mysql_insert("INSERT INTO `znote_paypal` VALUES ('0', '$txn_id', 'ERROR: Invalid data. $postdata', '0', '0', '0')");
Eg
ALTER TABLE znote_paypal MODIFY email TEXT;
The line on Paypal IPN.php file tries to log the error to znote_paypal in the event "something is wrong", however it fails to do so because the varchar(255) limit.
Column should be TEXT or something else that supports a longer string in the event it's required to log.
mysql_insert("INSERT INTO `znote_paypal` VALUES ('0', '$txn_id', 'ERROR: Invalid data. $postdata', '0', '0', '0')"); Eg ALTER TABLE znote_paypal MODIFY email TEXT;