If you have troubles since the update to WordPress 4.5 please read this post before opening a new thread.
I inserted 2 images in the header of the page, linking to different languages in the page.
And when I try to insert a post I get this error:
Warning: Cannot modify header information – headers already sent by (output started at /home/web26255l/domains/svalner.se/public_html/wp-content/themes/propulsion/functions.php:1) in /home/web26255l/domains/svalner.se/public_html/wp-includes/pluggable.php on line 881
I changed some codes in the functions.php and then replaced it with a Backup that I had, could it be something wrong, ether? should I replace the functions.php with the original that comes with the propulsion zip file?
Yes, it seems like your custom code in functions.php modifies the header information (eg because of utf8 characters in the code, etc.). The original functions.php will fix the error. If you need the custom code you can post it by using the github gist service: https://gist.github.com/ and we’ll try to fix the code for you.
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