# Error 500 after installation (Step2)

**URL:** <https://forum.mautic.org/t/error-500-after-installation-step2/31929>\
**Category:** Mautic 5 Install/Upgrade Support\
**Created:** [May 1, 2024, 5:44pm UTC](https://forum.mautic.org/t/error-500-after-installation-step2/31929 "2024-05-01T17:44:18Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![darkcorner](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/darkcorner/32/11911_2.png) [@darkcorner](https://forum.mautic.org/u/darkcorner)\
**Post date:** [May 1, 2024, 5:44pm UTC](https://forum.mautic.org/t/error-500-after-installation-step2/31929/1 "2024-05-01T17:44:18Z")

</div>

**Your software**  
My Mautic version is: 5.0.4  
My PHP version is: 8.1.28  
My Database type and version is: MariaDB 10.11.6

**Your problem**  
I installed Mautic 5.0.4 using the script provided by the provider.  
I’ve tried several times, but I always get to **/index.php/installer/step/2** with an error

> Uh oh! I think I broke it. If I do it again, please report me to the system administrator! 500 Internal Server Error.

The Apache log gives me a Mod\_Security error, but even by deactivating this module (and I don’t want to do that) I still get the same error.

These errors are showing in the log:

```auto
[Wed May 01 19:24:22.728120 2024] [security2:error] [pid 51126:tid 140029374408384] [remote MY-IP:55961] [client MY-IP] ModSecurity: Rule 7f5b2e628b18 [id "-"][file "/usr/share/modsecurity-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "421"] - Execution error - PCRE limits exceeded (-47): (null). [hostname "mkt.MY-DOMAIN"] [uri "/index.php/installer/step/2"] [unique_id "ZjJ6xusN9k0IZgDKX5NPIAAABBg"], referer: https://mkt.MY-DOMAIN/index.php/installer/step/2
[Wed May 01 19:24:22.722092 2024] [security2:error] [pid 51126:tid 140029374408384] [remote MY-IP:55961] [client MY-IP] ModSecurity: Rule 7f5b2e6c6f40 [id "-"][file "/usr/share/modsecurity-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "93"] - Execution error - PCRE limits exceeded (-47): (null). [hostname "mkt.MY-DOMAIN"] [uri "/index.php/installer/step/2"] [unique_id "ZjJ6xusN9k0IZgDKX5NPIAAABBg"], referer: https://mkt.MY-DOMAIN/index.php/installer/step/2
[Wed May 01 19:18:04.887519 2024] [security2:error] [pid 45351:tid 139668674807488] [remote MY-IP:55778] [client MY-IP] ModSecurity: Rule 7f072c038b18 [id "-"][file "/usr/share/modsecurity-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "421"] - Execution error - PCRE limits exceeded (-47): (null). [hostname "mkt.MY-DOMAIN"] [uri "/index.php/installer/step/2"] [unique_id "ZjJ5TOnf7W_339wCZ7yaWQAAUgo"], referer: https://mkt.MY-DOMAIN/index.php/installer/step/2
[Wed May 01 19:18:04.881457 2024] [security2:error] [pid 45351:tid 139668674807488] [remote MY-IP:55778] [client MY-IP] ModSecurity: Rule 7f072c6bbf40 [id "-"][file "/usr/share/modsecurity-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "93"] - Execution error - PCRE limits exceeded (-47): (null). [hostname "mkt.MY-DOMAIN"] [uri "/index.php/installer/step/2"] [unique_id "ZjJ5TOnf7W_339wCZ7yaWQAAUgo"], referer: https://mkt.MY-DOMAIN/index.php/installer/step/2

```