don't delete any files otherwise nothing will work , post link to your install so we can check the issue, leave all files in tact
im restore it already and look like error at this line dropd13.js:498 caused my bbcode for kunena not work
var activedropded = dropholder.getElement("li.active").hasClass("hasch ild");
. my site still at localhost.
for css i use custom css, but i want separate it and name it like k2.css, or kunena.css.