I was in page 2 more than 7 days.

I was in page 2 more than 7 days, for a major keyword and now google reserve me the 8 page...wtf ?

 

Don't panic, just keep on link building and updating your site, remember google is a moving target, nothing says the same, and you keep on bouncing around the whole time. it is normal! keep on working and you will be back soon

 

I hope to get a good position as previous! Now i have ~ 30k back links

 

If your site is new or has just been restructured, this is not unusual. Don't panic, but just keep working on your site.

 

My site is 1 year old!

 

if you gained too many links with the same anchor text recently you might receive a small penalty from google but ishould dissapear in time.

 

This is due to lack of backlinks. Relevant backlinks will rank you much better.

 

I checked at google.ro and my site is listed on second page, for same keyword.