[fix] frappe/erpnext#8485 (#3107)

frappe/desk/reportview.py

@@ -6,6 +6,7 @@ from __future__ import unicode_literals
 
 import frappe, json
 import frappe.permissions
+import MySQLdb
 from frappe.model.db_query import DatabaseQuery
 from frappe import _
 
@@ -255,6 +256,9 @@ def get_stats(stats, doctype, filters=[]):
 		except frappe.SQLError:
 			# does not work for child tables
 			pass
+		except MySQLdb.OperationalError:
+			# raised when _user_tags column is added on the fly
+			pass
 
 	return stats