The smplayer web has been removed from the svn. If you were using the svn to update your translation of the website, now you need to switch to transifex.
This post in the blog explains how to use it:
http://smplayer.info/blog/how-to-make-a ... transifex/
Once you finish the translation you don't need to send it to me, I'll grab it from there and upload it to the website.