wpdiscuz can not loading, I tried to resolve problem

I try to add wp_head();

I try to add hook:  add_action(‘wp_head’, array(&$this, ‘init_current_post_type’));

And no effect.  Consol showed an error.

It's funny, but wpdiscuz working on other hosting, on same theme!!!

How can I fix the problem?

"

VM3496:1 Uncaught ReferenceError: wpdiscuzAjaxObj is not defined

    at eval (eval at <anonymous> (jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1), <anonymous>:1:1)

    at eval (<anonymous>)

    at jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

    at Function.globalEval (jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1)

    at Ha (jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1)

    at a.fn.init.append (jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1)

    at a.fn.init.<anonymous> (jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1)

    at Y (jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1)

    at a.fn.init.html (jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1)

    at Object.<anonymous> (jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1)

(anonymous) @ VM3496:1

(anonymous) @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

globalEval @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

Ha @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

append @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

(anonymous) @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

Y @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

html @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

(anonymous) @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

i @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

fireWith @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

y @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1

c @ jquery.js,qver=1.12.4.pagespeed.jm.pPCPAKkkss.js:1"