Issue in Opportunity List View for a single User

In one of the users in our ERPNext installation, we are getting this issue. All other users do not have this issue. we tried migrating and updating to latest version of ERPNext and frappe, but no solution was found.

Full error log below

App Versions

{
	"chat": "0.0.1",
	"eltech": "0.0.1",
	"erpnext": "14.12.1",
	"frappe": "14.22.1",
	"hrms": "1.0.0",
	"india_compliance": "14.1.1",
	"payments": "0.0.1",
	"whitelabel": "0.0.1"
}

Route

List/Opportunity/List

Trackeback

Syntax error in query:
SELECT `name` FROM `tabDocType` WHERE `name`='\' ORDER BY `modified` DESC LIMIT 1 None
Traceback (most recent call last):
  File "apps/frappe/frappe/app.py", line 69, in application
    response = frappe.api.handle()
  File "apps/frappe/frappe/api.py", line 54, in handle
    return frappe.handler.handle()
  File "apps/frappe/frappe/handler.py", line 45, in handle
    data = execute_cmd(cmd)
  File "apps/frappe/frappe/handler.py", line 83, in execute_cmd
    return frappe.call(method, **frappe.form_dict)
  File "apps/frappe/frappe/__init__.py", line 1590, in call
    return fn(*args, **newargs)
  File "apps/frappe/frappe/client.py", line 421, in validate_link
    values.name = frappe.db.get_value(doctype, docname, cache=True)
  File "apps/frappe/frappe/database/database.py", line 495, in get_value
    result = self.get_values(
  File "apps/frappe/frappe/database/database.py", line 592, in get_values
    out = self._get_values_from_table(
  File "apps/frappe/frappe/database/database.py", line 822, in _get_values_from_table
    return self.sql(query, as_dict=as_dict, debug=debug, update=update, run=run, pluck=pluck)
  File "apps/frappe/frappe/database/database.py", line 218, in sql
    self._cursor.execute(query, values)
  File "env/lib/python3.10/site-packages/pymysql/cursors.py", line 148, in execute
    result = self._query(query)
  File "env/lib/python3.10/site-packages/pymysql/cursors.py", line 310, in _query
    conn.query(q)
  File "env/lib/python3.10/site-packages/pymysql/connections.py", line 548, in query
    self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  File "env/lib/python3.10/site-packages/pymysql/connections.py", line 775, in _read_query_result
    result.read()
  File "env/lib/python3.10/site-packages/pymysql/connections.py", line 1156, in read
    first_packet = self.connection._read_packet()
  File "env/lib/python3.10/site-packages/pymysql/connections.py", line 725, in _read_packet
    packet.raise_for_error()
  File "env/lib/python3.10/site-packages/pymysql/protocol.py", line 221, in raise_for_error
    err.raise_mysql_exception(self._data)
  File "env/lib/python3.10/site-packages/pymysql/err.py", line 143, in raise_mysql_exception
    raise errorclass(errno, errval)
pymysql.err.ProgrammingError: (1064, "You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ''\\' ORDER BY `modified` DESC LIMIT 1' at line 1")

Request Data

{
	"type": "POST",
	"args": {
		"doctype": "DocType",
		"docname": "\\",
		"fields": "[]"
	},
	"headers": {},
	"error_handlers": {},
	"url": "/api/method/frappe.client.validate_link"
}

Response Data

{
	"exception": "pymysql.err.ProgrammingError: (1064, \"You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ''\\\\' ORDER BY `modified` DESC LIMIT 1' at line 1\")"
}