Thread:Project:Support desk/Special characters (+ symbole) in url/reply (2)

Thanks for reply. I'm not sure if this can resolve my problem but everything was perfect since the time I installed my website until few days ago when I realized that the pages containing this character were not able to be called any longer. I'm sure I created them and was calling them from time to time. Now I can create a page but can not call it. To make things clear,
 * go to http://www.ejabah.info/wiki and try to append the expression "A+B" in the address box and then see what you get instead.
 * If you try it without short url, http://www.ejabah.info/w/index.php?title=A+B, you would get the same issue.
 * If you try with short url and encoding, http://www.ejabah.info/wiki/A%2BB, you get the same issue.
 * If you try without short url but with encoding, http://www.ejabah.info/w/index.php?title=A%2BB, you get the problem solved.

But my site is with short URL and so all my links are called this way. So how can I solve it?

You can see that Mediawiki doesn't have this problem here.

I feel that something done at the hosting server (example changed the redirecting rules in the Apache). I called their help but they couldn't resolve it.