Share 'API 500 Internal Server Error'

Hey guys, just a quick question. Im using the ning api to grab a user's email and then submit it to my server, however even though this works 90% of the time, randomly I will start getting a 500 Internal server error. I've checked the error codes and the code 500 relates to authentication, however it doesn't make any sense that it will authenticate 90% of the time and then all of a sudden it will…