# Uptime Page Error - Failed to execute 'btoa' on 'Window'

**URL:** https://discuss.elastic.co/t/uptime-page-error-failed-to-execute-btoa-on-window/340630
**Category:** Kibana
**Created:** [August 11, 2023, 9:52am UTC](https://discuss.elastic.co/t/uptime-page-error-failed-to-execute-btoa-on-window/340630 "2023-08-11T09:52:46Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![praveen\_raju](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/praveen_raju/32/81804_2.png) [@praveen\_raju](https://discuss.elastic.co/u/praveen_raju)
#### Post date: [August 11, 2023, 9:52am UTC](https://discuss.elastic.co/t/uptime-page-error-failed-to-execute-btoa-on-window/340630/1 "2023-08-11T09:52:47Z")

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Hello,

We are monitoring around 1500 endpoints using Heartbeat. While pagination we are getting this strange error.

Is it something related to character on the ID or NAME using in the heartbeat configurations ??? Please help

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/b/0/b06fef8e10a11da8721fd61d0103f8ba00f848ea.png)

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<div class="post-metadata">

### Author: ![praveen\_raju](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/praveen_raju/32/81804_2.png) [@praveen\_raju](https://discuss.elastic.co/u/praveen_raju)
#### Post date: [August 14, 2023, 9:05am UTC](https://discuss.elastic.co/t/uptime-page-error-failed-to-execute-btoa-on-window/340630/2 "2023-08-14T09:05:52Z")

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this is resolved.

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<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 11, 2023, 9:06am UTC](https://discuss.elastic.co/t/uptime-page-error-failed-to-execute-btoa-on-window/340630/3 "2023-09-11T09:06:50Z")

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