register an account

[Kentopencart]

I have opencart 1.5.6 with Swedish language file
I get an error code when the customer should register an account

2013-11-16 14:54:16 - PHP Warning: Can not modify header information - headers alreadycreated late by (output started at / customers/1/b/6/mittföretag.se/httpd.www/catalog/language/swedish / account / register.php: 1) in / customers/1/b/6/mittföretag.se/httpd.www/system/engine/controller.php on line 28
2013-11-16 14:54:16 - PHP Warning: Can not modify header information - headers alreadycreated late by (output started at / customers/1/b/6/mittföretag.se/httpd.www/catalog/language/swedish / account / register.php: 1) in / customers/1/b/6/mittföretag.se/httpd.www/system/engine/controller.php on line 29

If the customer has items in their cart, everything works perfectly, but when the customer's shopping cart is empty and he should sign up an account i got this error code.

Can someone please help me

[Tpojka]

What did OpenCart comunity say? Is that common error there?

If you don't post the relevant php code, then I don't know how you expect us to help. We could look into our crystal balls and tell you that your header() is in the wrong place.

[Dani]

Looks like you're trying to do a redirect or something like that after outputing HTML to the browser.