Mahara website contents not visible in dashboard

Iam using mahara to build a website. I got the source code from official mahara git repository. But when i edit the contents in the dashboard its working but the content blocks are not visible. when i drag the blocks only the contents are visible. What can i do to resolve this.

I have checked for error, i have resolved almost everything. But still i couldnt able to resolve this problem.

I have checked the errors its showing parse error alone

sendjsonrequest() failed: parsererror 
mahara.js?v=9035:387
l   @   jquery.js:3496
fireWith    @   jquery.js:3626
S   @   jquery.js:9788
(anonymous) @   jquery.js:10047
load        
send    @   jquery.js:10066
ajax    @   jquery.js:9682
sendjsonrequest @   mahara.js?v=9035:345
addNewBlock @   views.js?v=9035:515
(anonymous) @   views.js?v=9035:461
s   @   jquery.js:5174
dispatch    @   jquery.js:5429
m.handle    @   jquery.js:5233
trigger @   jquery.js:8715
(anonymous) @   jquery.js:8793
each    @   jquery.js:381
each    @   jquery.js:203
trigger @   jquery.js:8792
closePositionBlockDialog    @   views.js?v=9035:735
(anonymous) @   views.js?v=9035:717
dispatch    @   jquery.js?v=9035:2
y.handle    @   jquery.js?v=9035:2