error when changing template for a device

[scavenger67]

Hi.
I've a little problem when i try to change a template for a device.

I try with an imported template or the defaul template such as "generic snmp-enable host" but it's not working.

Warning: Variable passed to each() is not an array or object in C:\Apache2\htdocs\cacti\lib\data_query.php on line 490

Warning: Cannot modify header information - headers already sent by (output started at C:\Apache2\htdocs\cacti\lib\data_query.php:490) in C:\Apache2\htdocs\cacti\host.php on line 121

any idea ?
thanks

[scavenger67]

found the problem. data query does not reflect the exact pacth of the scripts..