Update: The root cause has been found and remedied, issues with the app should now be resolved!
We are currently working to find the root cause of the downtime that has occured the last few days. It appears we are running into a storage problem with the server. We have 150GB of disk space available and the app/site is currently only using approximately 3GB, somewhere along the lines we have something taking up a lot of our space and causing us a bit of a headache. We've cleared some space out of the server to give a little bit of wiggle room while we try to find the culprit and at this time the app should be back up and running.