I keep getting this sitemap warning each day the sitemap is generated, but I simply cannot find out what the problem is:
Sitemap generate warnings:
Cannot send headers; headers already sent in /var/www/vvspower.dk/public_html/app/code/local/Mage/Epay/Model/Observer.php, line 44
And where to look for it...
Can anybody please help?
If you can share the code of the Observer file someone may be able to help you.