# An unknown error occurred while loading the data

**URL:** https://discourse.pi-hole.net/t/an-unknown-error-occurred-while-loading-the-data/46855
**Category:** Help
**Created:** [May 6, 2021, 6:28pm UTC](https://discourse.pi-hole.net/t/an-unknown-error-occurred-while-loading-the-data/46855 "2021-05-06T18:28:21Z")
**Posts on this page:** 1
**Showing post:** 2

<div class="post-metadata">

### Author: ![DanSchaper](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/danschaper/32/91_2.png) [@DanSchaper](https://discourse.pi-hole.net/u/DanSchaper)
#### Post date: [May 6, 2021, 6:34pm UTC](https://discourse.pi-hole.net/t/an-unknown-error-occurred-while-loading-the-data/46855/2 "2021-05-06T18:34:53Z")

</div>

```plaintext
   2021-05-06 19:03:42: (mod_fastcgi.c.421) FastCGI-stderr: PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 4096 bytes) in /var/www/html/admin/api_db.php on line 131
   2021-05-06 19:08:41: (mod_fastcgi.c.421) FastCGI-stderr: PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 4096 bytes) in /var/www/html/admin/api_db.php on line 131

```

You need to increase the PHP memory.

[How do I increase PHP's memory? - Help / Community Help - Pi-hole Userspace](https://discourse.pi-hole.net/t/how-do-i-increase-phps-memory/37170)

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