Every couple of months, Box breaks my entire site.

I've used the API to link my website to Box- files I upload from my site are automatically sent up to my Box account.  But every couple of months, Box decides to stop working, which completely destroyes my ENTIRE WEBSITE.

How?  Glad you asked.  Whenever I try to log in to my website, Box intercepts, and directs me to the Box "grant access" page.  Which of course doesn't work.  So I have to strip out all my code and start again from scratch.  Frankly, it's starting to be more trouble than it's worth.

Is there any way to stop Box from randomly revoking my access?