# Error adding flows Cannot read properties of undefined (reading 'substring')

**URL:** <https://discourse.nodered.org/t/error-adding-flows-cannot-read-properties-of-undefined-reading-substring/82592>\
**Category:** General\
**Created:** [3 November 2023 21:42 UTC](https://discourse.nodered.org/t/error-adding-flows-cannot-read-properties-of-undefined-reading-substring/82592 "2023-11-03T21:42:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ksalhoff](https://avatars.discourse-cdn.com/v4/letter/k/d6d6ee/32.png) [@ksalhoff](https://discourse.nodered.org/u/ksalhoff)\
**Post date:** [3 November 2023 21:42 UTC](https://discourse.nodered.org/t/error-adding-flows-cannot-read-properties-of-undefined-reading-substring/82592/1 "2023-11-03T21:42:30Z")

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On startup, I'm seeing this message on the dashboard and no flows are showing / loading:

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/4/c/4c085ff0ec639799751a6ff1868190157f23437e.png)

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**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [3 November 2023 21:56 UTC](https://discourse.nodered.org/t/error-adding-flows-cannot-read-properties-of-undefined-reading-substring/82592/2 "2023-11-03T21:56:35Z")

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Hi @ksalhoff - welcome to the forums

I suppose the first question to ask, have you made any changes recently, or has this event unexpectedly presented it's itself?

Is your Node RED accessible to the internet?

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [2 January 2024 21:57 UTC](https://discourse.nodered.org/t/error-adding-flows-cannot-read-properties-of-undefined-reading-substring/82592/3 "2024-01-02T21:57:22Z")

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