uservoice - How to resolve Exceeded API Limit?

Question

I am stuck. I get the exception

Exceeded API Limit

when I try to get data from user voice.
But sometimes it does work. How can I fix it?

I have m.getValue() as the id of the forum and m.getkey() as id of the suggestions loop (array of id suggestion list). So I tried this:

Collection comments = client.getCollection("/api/v1/forums/" + m.getValue() + "/suggestions/" + m.getKey() + "/comments.json"); 

What can I do to fix it?