[TYPO3-english] Blank backend T3blog

[Issam BOUZIANE]

Hello,
I am a Typo3 user. I installed T3blog for my blog. Everything goes well in
my local virtual machine. But once I sended the website to the server,
T3blog does not work in the user backend: If I click on any of the four
modules, the page is blank, I can't get access to my posts, categories ...
using firebug, the request sent via javascript returns a blank response,
chrome fires a 'call' method error...
How can I solve this problem?
thank you. :-)