Friends,

I made some changes in crm.phonecall,crm.lead etc..

Now it cause the following eroor,

File "/home/amz02/Projects/odoo/odoo-8.0-647afdf/openerp/modules/registry.py", line 101, in __getitem__
    return self.models[model_name]
KeyError: 'crm.phonecall'

And it seems like as in browsr,

Internal Server Error

The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.

Thanks In advance...