Sandbox API Credentials
I'm having troubles with the sandbox API Credentials. When I try to pay for a project the screen says "If the problem persists, contact the site owner and refer your Order ID:1212"
When I check the order this message is here.
The following error ocurred while trying to make the pay request: "Authentication failed. API credentials are incorrect."
I must have checked the credentials 20 times and even generated new ones and I'm still getting the same error..
What is the problem here.