I have a problem with the button to create new quiz, i have already installed the plg Jquery, the plg_communityquiz_aup_v.1.0.0.zip, but i can´t install the file ext_sh404sef_community...

and my php version is 5.2.17

then i don't know that do

help me please

[attachment:1]community_quiz.jpg[/attachment]