Show product per page link has moved

[Presta1.5.4.1Newbies]

I found this problem after I did indexation. I did indexation because the search function in front office cannot find the products like in the back office.

 

My shop url is www.grandcoralaustralia.com.au/Grandcoral

http://grandcoralaus...20#.Ucb2cD69Hd4

 

[Debug] This page has moved

Please use the following URL instead: http://grandcoralaus...&id_lang=1&n=20

 

 

It will happen when I try to change the number of products per page , for example when there are more than 10 products then I change from show 10 products by page to 20 or 50, it will trigger this page.

I can not find the solution on internet, it would be because of the way I used the search words.

I also cannot find the solution from forge.prestashop.com.

I followed this suggestion http://forge.prestashop.com/browse/PSCFV-1762 but it leads to 404 page not found.

From users experience, anyone can help to solve this problem.

Is it because of page index has changed?

Edited June 23, 2013 by Xarapauy (see edit history)