Bench update Error..!

Hello,
I have done multi-tenant setup and i am facing below issue for each site .Therefore i am not able to login.After entering password its is showing verifying and taking too time but cant get logged in.Below is the trace back on the login page.

frappe-web.min.js:932 Traceback (most recent call last):
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/app.py”, line 53, in application
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/app.py”, line 115, in init_request
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/auth.py”, line 48, in init
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/auth.py”, line 101, in init
self.user = None
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/auth.py”, line 119, in login
self.make_session()
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/auth.py”, line 191, in authenticate
clear_sessions(frappe.session.user, keep_current=True)
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/auth.py”, line 198, in check_if_enabled
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/auth.py”, line 210, in fail
if user==‘Administrator’: return
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/core/doctype/authentication_log/authentication_log.py”, line 22, in add_authentication_log
}).insert(ignore_permissions=True)
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/model/document.py”, line 182, in insert
def raise_no_permission_to(self, perm_type):
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/model/document.py”, line 493, in _set_defaults
for df in self.meta.get_table_fields():
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/init.py”, line 587, in new_doc
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/model/create_new.py”, line 14, in
from frappe.core.doctype.user_permission.user_permission import get_user_permissions
File “/home/ierpadmin/webapps/GM_AGRO/frappe-bench/apps/frappe/frappe/core/doctype/user_permission/user_permission.py”, line 8, in
from frappe.permissions import (get_valid_perms, update_permission_property)
ImportError: cannot import name update_permission_property