Unable to create hosting plan at host level

Question: Unable to create hosting plan at host level

Answer:

Such problem normally appears when English language is not the server default language and users are using other regional OS such as Turkish, German, Spanish etc.

Our recommendation & requirement is to install SQL server in "SQL_Latin1_General_CP1_CI_AS" collation. If it is not the above then many of HC’s stored procedures would fail to execute while installing HC. As a result different panel services will be affected such as hosting plan, mail domain creation, disk usage service etc.

Verify the sql collation with the help of the below image:

To revert the existing sql collation follow this article: 

http://technet.microsoft.com/en-us/library/ms179254.aspx 

OR you may reinstall sql server.