I tried to install the plugin from a new wordpress site and got the same message. But when I activated the plugin again the 2nd from the plugin menu, the plugin worked.
Can you try this and see if the same happens to you?
Yes that work, But now when Im setting up one out of the two pages I get this:
Warning: Cannot modify header information – headers already sent by (output started at /home/domain/public_html/wp-content/plugins/soundcloud-sound-competition/Classes/class-remixers.php:75) in /home/domain/public_html/wp-includes/pluggable.php on line 881
This happens when making the page for this code [soundcomp-entrees type=’mycomp1′]
Since I cannot reproduce your error, maybe the reason for it might be some other place. Did you try and isolate the error, shutting off other plugins to see if the error is still there?
I found another thread about the same error you are having and it is some good things to check here:
Cannot modify header information – headers already sent
Let me know how it goes, give me a shout at Webhjelpen contact if you cannot get it resolved after checking the thread.
No new info, so marking this case as resolved.
