[Error]: SQL/DB Error --
[You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1]
UPDATE members SET mem_timeout='unix_timestamp(NOW())-181' WHERE mem_userid=
in /var/www/vhosts/townhousenetwork.co.uk/httpdocs/lib/php5/class.DB.php:155

Stack Dump:

errorHandler(integer(256), string("SQL/DB Error --
[You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1]
UPDATE members SET mem_timeout='unix_timestamp(NOW())-181' WHERE mem_userid="), string("/var/www/vhosts/townhousenetwork.co.uk/httpdocs/lib/php5/class.DB.php"), integer(155), array(array))
db->print_error(string("You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1"))
    [/var/www/vhosts/townhousenetwork.co.uk/httpdocs/lib/php5/class.DB.php:217]

db->query(string("UPDATE members SET mem_timeout='unix_timestamp(NOW())-181' WHERE mem_userid="))
    [/var/www/vhosts/townhousenetwork.co.uk/httpdocs/logoff.php:30]