Blog Late Updates

Since I have never updated my blogs for about weeks my page rank turns down to zero (PR0)- though three weeks is not really a long period of time ( it's just a short period of time) but since I missed it the traffic of my blogs have automatically down to zero, very disgusting! My Google index has gone to zero too. And my real rank decreases; I don't know how I am going to fix it or how to get my Page rank back again, I really don't know how to figure it out.

I have learned that your sites/blogs must be updated everyday and must to try to search in Google, yahoo,or any search engines to maintain your page rank. Now, my two sites have got a zero page rank, and zero google index and only have few visitors as well. I do hope that I can get my page rank back again because if not I would only get few offers otherwise.