You didn't enable debug mode first (see my last reply).
Please do that and provide a fresh log.
According to the rpnet.biz support this is not supposed to happen as the generated key never expires unless changed by the user.
I can at least see your API key in the log and I can see that it is invalid now.
My guess is that this is a serverside issue/problem with your account.
If you want you can also simply validate this yourself next time - this is the request JD is using to obtain your account information:
Code:
premium.rpnet.biz/client_api.php?username=yourCustomerID&password=yourAPIKey&action=showAccountInformation
Example API answer for valid premium accounts:
Code:
{"accountInfo":{"premiumExpiry":1755302400,"currentServer":"RPNETSERVER"}}
Example API answer for invalid accounts:
Code:
{"error":["Invalid authentication."]}