Looks like it is not realted to JCH ,anyhow I need your help for solving that if you please

=========UPDATE=======
I have created a clone site ,the only difference is i disabled the JCH and enabled RokBooster

Hello aelsharawi,

Can you provide us your backend and FTP access so we can have a better look on your issue here? Please advise.

thanks,see attached

Hello,

Thanks for the access. However, I can't access your backend. Can you change the password to something else instead of URL.

sorry for that,see attachment

Hello aelsharawi,

Sorry for late reply to this and keep asking for the access,
I have tried to access in your Joomla backend URL, but i hitting this :

This web page is not available

check my screenshot : http://screencast.com/t/3qdUNDTw
Am i access wrong with your Joomla backend URL? Please advise.

Hello,

I've tried to access your site but failed. However, I have suspected that the error is because of the 'fullname' field. Did you disable the fullname field from appearing in the mini registration? Because Joomla set the Fullname as a compulsory field in registration hence, it will throw error if the field is empty.

yes I use email instead of name.sorry of the down time on the site was dns issue,try now

Hello,

I've re-checked your site and I've turned on this option: http://screencast.com/t/4oLXqwF2QcE and the registration works: http://screencast.com/t/OX3GHSDg . The issue is because this field is disabled hence, Joomla will throw error because the fullname field is empty. Fullname field is compulsory for Joomla user registration.

thanks for your help ,yes it worked,maybe you can add this by default in future versions,since I think it is common mistake

Hello aelsharawi,

Yes, we will check on this issue and will consider it to make it a default field. Thanks.