---
title: "[Auto] Uncaught TypeError: Cannot read properties of undefined (reading 'toLowerCase')"
url: "https://mycompassconsulting.com/compass_bug/auto-uncaught-typeerror-cannot-read-properties-of-undefined-reading-tolowercase-10/"
author: X
published: "2026-09-09T01:50:04-07:00"
modified: "2026-09-09T01:50:04-07:00"
---

# [Auto] Uncaught TypeError: Cannot read properties of undefined (reading 'toLowerCase')

Uncaught TypeError: Cannot read properties of undefined (reading 'toLowerCase')

At: https://mycompassconsulting.com/wp-content/plugins/xophz-compass/admin/dist/js/x-compass-layout-BiWsiM98.js:1:17129