# \[APP\]\[Pro\] Homey ESPresense room presense system **URL:** \ **Category:** Apps\ **Created:** [November 15, 2023, 6:52pm UTC](https://community.homey.app/t/app-pro-homey-espresense-room-presense-system/94742 "2023-11-15T18:52:10Z")\ **Posts on this page:** 1\ **Showing post:** 72
**Author:** ![SunBeech](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sunbeech/32/111391_2.png) [@SunBeech](https://community.homey.app/u/SunBeech)\ **Post date:** [November 26, 2025, 7:31pm UTC](https://community.homey.app/t/app-pro-homey-espresense-room-presense-system/94742/72 "2025-11-26T19:31:11Z")
Do you perhaps have an app installed that is no longer supported? There was a similar case in this topic: > [@Cannot read properties of null (reading 'toLowerCase')](https://community.homey.app/t/cannot-read-properties-of-null-reading-tolowercase/112309): > > Hi, When I try to add a flowcard “Then \> Apps \> Activate app …”" and try to select app it gives me the error “Cannot read properties of null (reading ‘toLowerCase’)”. I just upgraded from Homey Pro 2019 to 2023 with backup. I also can’t search for any apps available in list. All is working fine after back-up. I have checked my app list and couldn’t find anything strange. Is this a bug in Homey or am I missing something? [image] --- _[View the full topic](https://community.homey.app/t/app-pro-homey-espresense-room-presense-system/94742)._