The theme is missing style.css stylesheet.

Hey Lundby,

From our support page on Themeforest:

Missing style sheet error when installing the theme
A common issue that can occur with users new to installing WordPress themes is a “Broken theme and/or stylesheets missing” error message being displayed when trying to upload or activate the theme. This error message does not mean that the theme you have purchased is broken, it simply means it has been uploaded incorrectly. Luckily, there is a very easy fix.
When I install the theme I get the following error:

The package could not be installed.
The theme is missing the style.css stylesheet.
In this case you are simply trying to install the wrong zip file. If you download the files from themeforest you got various options:

You can either download:
All files (with documentation, psd files, wordpress theme, licence, versions file etc)
Only the theme files
If you download only the theme files and upload them to your server the theme will work fine. If you download “All files” you need to unpack the downloaded zip file first. Inside you will find another ZIP file that contains the actual theme files. This is the folder you can upload to your server.

If you need more information about htis topic. Here is a Video tutorial by themeforest: http://support.envato.com/index.php?/Knowledgebase/Article/View/269/0/my-wordpress-theme-isnt-working-what-should-i-do

Please make sure you are uploading the correct .zip file.

Best regards,
Rikard