I made some changes in Human Resources config and after that i am getting this error which is not allowing me to login.

Client Traceback (most recent call last): File "/opt/openerp/server/openerp/addons/web/http.py", line 204, in dispatch response["result"] = method(self, **self.params) File "/opt/openerp/server/openerp/addons/web/controllers/main.py", line 864, in authenticate req.session.authenticate(db, login, password, env) File "/opt/openerp/server/openerp/addons/web/session.py", line 115, in authenticate uid = self.proxy('common').authenticate(db, login, password, env) File "/opt/openerp/server/openerp/addons/web/session.py", line 30, in proxy_method result = self.session.send(self.service_name, method, *args) File "/opt/openerp/server/openerp/addons/web/session.py", line 103, in send raise xmlrpclib.Fault(openerp.tools.ustr(e), formatted_info) Server Traceback (most recent call last): File "/opt/openerp/server/openerp/addons/web/session.py", line 89, in send return openerp.netsvc.dispatch_rpc(service_name, method, args) File "/opt/openerp/server/openerp/netsvc.py", line 296, in dispatch_rpc result = ExportService.getService(service_name).dispatch(method, params) File "/opt/openerp/server/openerp/service/web_services.py", line 433, in dispatch return fn(*params) File "/opt/openerp/server/openerp/service/web_services.py", line 444, in exp_authenticate res_users = pooler.get_pool(db).get('res.users') File "/opt/openerp/server/openerp/pooler.py", line 49, in get_pool return get_db_and_pool(db_name, force_demo, status, update_module)[1] File "/opt/openerp/server/openerp/pooler.py", line 33, in get_db_and_pool registry = RegistryManager.get(db_name, force_demo, status, update_module) File "/opt/openerp/server/openerp/modules/registry.py", line 203, in get update_module) File "/opt/openerp/server/openerp/modules/registry.py", line 233, in new openerp.modules.load_modules(registry.db, force_demo, status, update_module) File "/opt/openerp/server/openerp/modules/loading.py", line 350, in load_modules force, status, report, loaded_modules, update_module) File "/opt/openerp/server/openerp/modules/loading.py", line 256, in load_marked_modules loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks) File "/opt/openerp/server/openerp/modules/loading.py", line 161, in load_module_graph models = pool.load(cr, package) File "/opt/openerp/server/openerp/modules/registry.py", line 118, in load model = cls.create_instance(self, cr) File "/opt/openerp/server/openerp/osv/orm.py", line 888, in create_instance 'You may need to add a dependency on the parent class\' module.' % (name, parent_name))

TypeError: The model "hr.contract" specifies an unexisting parent class "hr.contract"

You may need to add a dependency on the parent class' module.