User Permissions Manager not accessible

I wanted to restrict a user to one company only but I am unable to open user permissions Manager with the following traceback
Something went wrong
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Server Error: Please check your server logs or contact tech support.
Traceback (most recent call last):
File “/home/frappe/frappe-bench/apps/frappe/frappe/app.py”, line 57, in application
response = frappe.handler.handle()
File “/home/frappe/frappe-bench/apps/frappe/frappe/handler.py”, line 22, in handle
data = execute_cmd(cmd)
File “/home/frappe/frappe-bench/apps/frappe/frappe/handler.py”, line 53, in execute_cmd
return frappe.call(method, **frappe.form_dict)
File “/home/frappe/frappe-bench/apps/frappe/frappe/init.py”, line 935, in call
return fn(*args, **newargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/desk/desk_page.py”, line 32, in getpage
doc = get(page)
File “/home/frappe/frappe-bench/apps/frappe/frappe/desk/desk_page.py”, line 15, in get
page.load_assets()
File “/home/frappe/frappe-bench/apps/frappe/frappe/core/doctype/page/page.py”, line 119, in load_assets
for fname in os.listdir(path):
OSError: [Errno 2] No such file or directory: ‘/home/frappe/frappe-bench/apps/frappe/frappe/core/page/user_permissions’

Try this URL:

yourdomain/desk#List/User Permission/List

In the recent versions, User Permission UI has been changed from Page to Doctype.