Cannot modify header information

Hi,
I was use your module in old host. I move to new host, and they have restriction of course... everything work barring your module.
I like and I need this module so can you suggest what to do, error is:

Cannot modify header information - headers already sent by (output started at /users/antropologija/www/sites/all/modules/glossary/glossary.module:1) in /users/antropologija/www/includes/common.inc at line 319.

This error causes whan I press in any page Submit button I have blank page, so I must insert address again, only Edit button in any page work.

Thank you