ESS training and event management

Hi Experts,

Iam having an issue regarding training and event management end users are unable book their trining sessions as this are open sessions there is no need of manager approval, in portal side when endusers are trying to book their sessions it is showing in red colour and not able to book theit training activities we are facing the same for all end user. at backend R/3 side they are able to book and it is showing in green colour please help me in this ..

waiting for your responses ...

Regards,

Shilpa