Why am I getting this error?

May 29, 2014 at 6:57 AM
Himy friends, I'm using Tweetinvi and I think it's great, but I'm gettin' an error and I dont know where it comes from..

Sometimes my program is working fine, but sometimes I'm getting an error.

Im using this sentece:

var tweets = Search.SearchTweets(_hashtag);

And sometimes it works great, and sometimes a null reference error appears, and the tweet var=null

It's like if it's not searching or something like that...

I hope you could help me...

Thank you so much !!!