Know why?? datastore->fetch() breaking blogs.

[smnet]

Hi guys,

I have a custom datastore item called 'navcache' which I use on everypage in building the header. The datastore item is refreshed every few hours via cron and works fine.....

However, I get a database error when i visit any blog page I and I cant work out why.... I've narrowed it down though.

In global_start hook I have this code:-
$vbulletin->datastore->fetch(Array('navcache',));

This pulls in the info I need in the header and all pages display fine except the blogs, which throw this error:-

Database error in vBulletin 3.8.1:

Invalid SQL:

(
SELECT COUNT(*) AS total,
FROM_UNIXTIME(dateline - , '%c-%e-%Y') AS period
FROM blog AS blog

WHERE state IN('visible', 'moderation', 'deleted') AND dateline >= 1272150000 AND dateline < 1272832492
GROUP BY period
) UNION (
SELECT COUNT(*) AS total,
FROM_UNIXTIME(dateline - , '%c-%e-%Y') AS period
FROM blog AS blog
WHERE blog.userid IN (3) AND dateline >= 1272150000 AND dateline < 1275778800
GROUP BY period
);

MySQL 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 ' '%c-%e-%Y') AS period
FROM blog AS blog

WHERE state IN('visible', 'mo' at line 3
Error Number : 1064
Request Date : Sunday, May 2nd 2010 @ 09:34:52 PM
Error Date : Sunday, May 2nd 2010 @ 09:34:52 PM
Script : http://www.xxxxxxxx.com/blog.php
Referrer :
IP Address : x.x.x.x
Username : xxxxxxx
Classname : vB_Database_MySQLi
MySQL Version : 5.0.45

It's really weird because as I said all pages function fine... If I remove that line of code from global_start then it works fine (but obviously my header neeeds that datastore info)

Does anyone have any idea why this is happening and can you suggest a fix?

Cheers for your help,