@kat_indo ... my skype is [moderated] or u can get hold of mwe on chat at http://smeak.com. Difficult to say... we need to compare installs... you are going to have to tell me a bit more about install, plugins etc... I will do my best to assist...
My install works... well almost too well... some users really import a lot of nonsense ... but you can control that. Let's start by getting your install details, eg WP versions, BP versions... main plugins etc... We will also have to take a big look at yer FB app settings... they must be correct