I am seeing in the past few days a sporadic downtime of this API. My survey application depends on this sentiment analysis and it just keeps hanging until it times our and my clients cannot submit survey pages… It is happening right now again. What is going on???

This is the URL my application is accessing. It works most of the time but recently there has been these hung issues…
https://sentinelprojects-skyttle20.p.mashape.com