Product info not display using a specific language

[Shiker]

I installed STSv4.3.3 with HTCv2.6.0 Bundle (osC 2.2-MS2) one year ago on my site, and I had no problem with the STS configuration which is the same since that time.

I regularly make database updates, sts layout adjustments and some other updates but no action have been performed relating to STS settings via admin menus.

I noticed lately that I have no display when my site is displayed with spanish language but works fine using french or english one.

 

Here are the urls :

Normal display : http://www.atelierdutennis.com/product_inf...amp;language=fr

Wrong display : http://www.atelierdutennis.com/product_inf...amp;language=es

 

Can somebody have any idea ? I am searching for the origin of this problem but didn't found out anything at the moment.

 

Thanks a lot in advance for your precious help.