Facebook API: a strange query error 601

I get this error while trying to obtain the number of shares and likes of the particular link on Facebook:

{
 "error_code":601,"error_msg":"
 Parser error: unexpected ''' at position 56.",
 "request_args":
       开发者_如何学编程   [{"key":"method","value":"fql.query"},
           {"key":"format","value":"json"},
           {"key":"query","value":"SELECT share_count, like_count FROM link_stat WHERE
             url='http://www.lrinka.lt/index.php?act=main"},
           {"key":"item_id","value":"5963'"}]
}

The link: http://www.lrinka.lt/index.php?act=main&item_id=5963

The API call: https://api.facebook.com/method/fql.query?format=json&query=SELECT%20share_count,%20like_count%20FROM%20link_stat%20WHERE%20url=%27http://www.lrinka.lt/index.php?act=main&item_id=5963%27

Everything works fine with other links.

You are not closing the url parameter field correctly, missing ' at the end of the URL.

Also no need for the "slashes", try the following in the fql.query console:

SELECT share_count, like_count FROM link_stat WHERE url='http:\/\/www.lrinka.lt\/index.php?act=main

Would return the same error, and this:

SELECT share_count, like_count FROM link_stat WHERE url='http:\/\/www.lrinka.lt\/index.php?act=main'

Is valid but would return zero, and finally this:

SELECT share_count, like_count FROM link_stat WHERE url='http:\\www.lrinka.lt\index.php?act=main'

Would return the result expected.

EDIT:
Based on your comment, you are trying to call https://api.facebook.com/method/fql.query?query=QUERY with the format parameter set to json..so you need to encode the query, I used encodeURI:

https://api.facebook.com/method/fql.query?format=json&query=SELECT%20share_count,%20like_count%20FROM%20link_stat%20WHERE%20url='http:%5Cwww.lrinka.ltindex.php?act=main'