Office365 - Turn on Project Web App Settings

Hi,

Here is background. I developed a custom app. and getting error on app activation."Turn on Project Web App Settings"

1. using Office365 with Project server and SharePoint

2. Root site is Project server site. 

3. "Project web app setting" feature is enabled on project site. and there is no issue with my custom app activation. 

4. But i can't activate my custom Apps on separate team site collections. I got following error "Turn on Project web app settings."

5. When i go to team site settings features there is feature "Project web app setting". when try to activate giving me error with corelation ID. how can i check the id because i am using O365.

thanks,

/Asim

asim MCTS SharePoint 2007 -WSS 3.0