# Message: Cannot read properties of undefined (reading 'data')

**URL:** <https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965>\
**Category:** Shopware 6 (English)\
**Tags:** administration\
**Created:** [12. Januar 2023 um 07:35 UTC](https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965 "2023-01-12T07:35:13Z")\
**Posts on this page:** 9\
**Page:** 1

<div class="post-metadata">

**Author:** ![Bartech](https://avatars.discourse-cdn.com/v4/letter/b/e95f7d/32.png) [@Bartech](https://forum.shopware.com/u/Bartech)\
**Post date:** [12. Januar 2023 um 07:35 UTC](https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965/1 "2023-01-12T07:35:13Z")

</div>

Hi,  
How can I debug this problem: „Cannot read properties of undefined (reading ‚data‘)“  
It shows up for me every few minutes in the admin panel. I do not know exactly what the problem is.

---

<div class="post-metadata">

**Author:** ![Max\_Shop](https://avatars.discourse-cdn.com/v4/letter/m/58f4c7/32.png) [@Max\_Shop](https://forum.shopware.com/u/Max_Shop)\
**Post date:** [12. Januar 2023 um 09:02 UTC](https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965/2 "2023-01-12T09:02:46Z")

</div>

It is an old Shopware bug, do not worry about it. It may be fixed in the future.

---

<div class="post-metadata">

**Author:** ![Bartech](https://avatars.discourse-cdn.com/v4/letter/b/e95f7d/32.png) [@Bartech](https://forum.shopware.com/u/Bartech)\
**Post date:** [12. Januar 2023 um 09:10 UTC](https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965/3 "2023-01-12T09:10:13Z")

</div>

It’s terribly disturbing. Not sure what the error is about?

---

<div class="post-metadata">

**Author:** ![Max\_Shop](https://avatars.discourse-cdn.com/v4/letter/m/58f4c7/32.png) [@Max\_Shop](https://forum.shopware.com/u/Max_Shop)\
**Post date:** [12. Januar 2023 um 09:16 UTC](https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965/4 "2023-01-12T09:16:02Z")

</div>

You could debug the JavaScript with VUE. Not sure if it is the same error all the time.

---

<div class="post-metadata">

**Author:** ![Bartech](https://avatars.discourse-cdn.com/v4/letter/b/e95f7d/32.png) [@Bartech](https://forum.shopware.com/u/Bartech)\
**Post date:** [12. Januar 2023 um 09:19 UTC](https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965/5 "2023-01-12T09:19:30Z")

</div>

He’s trying to get it right. But I am running out of ideas. This problem appeared I don’t know for what reason, because nothing was added like plugins, themes etc.

---

<div class="post-metadata">

**Author:** ![Bartech](https://avatars.discourse-cdn.com/v4/letter/b/e95f7d/32.png) [@Bartech](https://forum.shopware.com/u/Bartech)\
**Post date:** [12. Januar 2023 um 09:52 UTC](https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965/6 "2023-01-12T09:52:24Z")

</div>

It shows me something like this in the console as this error occurs: Cannot read properties of undefined (reading ‘data’)

```auto
flatpickr.js:3 GET /api/notification/message?limit=5 net::ERR_CONNECTION_TIMED_OUT
(anonimowa) @ flatpickr.js:3
e.exports @ flatpickr.js:3
(anonimowa) @ commons.js?1662408253230875:1
UnBK.e.exports @ apexcharts.common.js:6
Promise.then (asynchronicznie)
CgaS.h.request @ vendors-node.js?16624082532356208:2
CgaS.i.forEach.h.<computed> @ _arrayReduce.js:13
(anonimowa) @ ace.js:4912
value @ commons.js?1662408253230875:1
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1
setTimeout (asynchronicznie)
value @ app.js?16624082536888535:1
(anonimowa) @ app.js?16624082536888535:1

```

---

<div class="post-metadata">

**Author:** ![Bartech](https://avatars.discourse-cdn.com/v4/letter/b/e95f7d/32.png) [@Bartech](https://forum.shopware.com/u/Bartech)\
**Post date:** [19. Januar 2023 um 08:58 UTC](https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965/7 "2023-01-19T08:58:40Z")

</div>

The problem was caused by an unstable Internet connection.

---

<div class="post-metadata">

**Author:** ![Gendai](https://avatars.discourse-cdn.com/v4/letter/g/a9a28c/32.png) [@Gendai](https://forum.shopware.com/u/Gendai)\
**Post date:** [20. Januar 2023 um 15:48 UTC](https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965/8 "2023-01-20T15:48:26Z")

</div>

May I ask now jou fixed this? I’m also having this issue when connecting via hotspot.

---

<div class="post-metadata">

**Author:** ![Bartech](https://avatars.discourse-cdn.com/v4/letter/b/e95f7d/32.png) [@Bartech](https://forum.shopware.com/u/Bartech)\
**Post date:** [20. Januar 2023 um 17:31 UTC](https://forum.shopware.com/t/message-cannot-read-properties-of-undefined-reading-data/97965/9 "2023-01-20T17:31:44Z")

</div>

I ran connectivity tests on my network and discovered that the network loses connection every now and then. I reported to the ISP and it was a problem on the Internet connection.

Log in to the Shopware6 admin panel - don’t close the browser and disconnect the internet and you will see that this message will quickly appear.