my site crashed after the change of nameserver.
If i want log in in my wordpress dashboard i get this error:
Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/w015c695/mysite.de/wp-config.php:1) in /www/htdocs/w015c695/mysite.de/wp-includes/pluggable.php on line 1216
Can anyboby please help?
This is unlikely to be an issue because of your DNS switch.
This is an error with PHP, and what its saying, is that somewhere along the way of processing the request, code was executed which echo’d, printed something too early, and as it’s already been sent, it can’t add/edit the headers. More info can found here on StackOverflow: How to fix "Headers already sent" error in PHP - Stack Overflow