Function frappe.desk.doctype.route_history.route_history.deferred_insert is not whitelisted

ERPNext
1

I have a proxmox Server running multiple instances of Frappe and ERPNext apps with port forwarding.
Whenever I login to one site with one port and simultaneously another site with different port number.
first site is getting the above message and logging out from the it.
Kindly suggest me…Any help would be appreciated.
“”
You are not permitted to access this resource.Function frappe.desk.doctype.route_history.route_history.deferred_insert is not whitelisted. “”

2

Has Anybody solved this? Or have an idea how to resolve this.