MySQL Error: Column 'type' in where clause is ambiguous

[محروم.كوم]

I have got this error
my email is always up to this message and an error in the database

PHP Code:

Database error in vBulletin 3.8.3:

Invalid SQL:

SELECT socialgroupmember.*, user.username
FROM socialgroupmember AS socialgroupmember
LEFT JOIN user AS user ON (user.userid = socialgroupmember.userid)
WHERE groupid = 44
AND type 'member'
ORDER BY user.username;

MySQL Error : Column 'type' in where clause is ambiguous

Error Number : 1052
Request Date : Thursday, August 6th 2009 @ 09:58:57 PM
Error Date : Thursday, August 6th 2009 @ 09:58:57 PM
Script : http://www.roo7oman.com/vb/group.php?do=manage&groupid=44
Referrer : http://www.roo7oman.com/vb/group.php
IP Address : 62.61.164.138
Username : المينووون
Classname : vB_Database
MySQL Version

I have disabled all adds-on in the program, but still up to this message
I hope help me __DEFINE_LIKE_SHARE__