bgmpData error

it does not display google map
and give a javascript error

Uncaught ReferenceError: bgmpData is not defined functions.js:37
$.bgmp.init functions.js:37
l jquery.js:2
c.fireWith jquery.js:2
v.extend.ready jquery.js:2
A

it worked well some times ago.

http://ww.wp.xz.cn/extend/plugins/basic-google-maps-placemarks/