# Cannot read properties of null (reading 'toLowerCase')

**URL:** <https://community.homey.app/t/cannot-read-properties-of-null-reading-tolowercase/112309>\
**Category:** Questions & Help\
**Tags:** app, flow, homey-pro\
**Created:** [July 2, 2024, 11:46pm UTC](https://community.homey.app/t/cannot-read-properties-of-null-reading-tolowercase/112309 "2024-07-02T23:46:53Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [July 3, 2024, 4:25am UTC](https://community.homey.app/t/cannot-read-properties-of-null-reading-tolowercase/112309/3 "2024-07-03T04:25:28Z")

</div>

Same issue here: [Problem with card "restart an app"](https://community.homey.app/t/problem-with-card-restart-an-app/111706)

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