# 500 Error On Install: Schema Error?

**URL:** <https://forum.mautic.org/t/500-error-on-install-schema-error/14578>\
**Category:** Product Support\
**Created:** [May 31, 2020, 5:05pm UTC](https://forum.mautic.org/t/500-error-on-install-schema-error/14578 "2020-05-31T17:05:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![oguruma](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/oguruma/32/1003_2.png) [@oguruma](https://forum.mautic.org/u/oguruma)\
**Post date:** [May 31, 2020, 5:05pm UTC](https://forum.mautic.org/t/500-error-on-install-schema-error/14578/1 "2020-05-31T17:05:15Z")

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Fresh install of 2.16.2 on Ubuntu 18.04. LAMP (Mysql 5.7 and PHP 7.2.4).

Max execution time is 900 seconds, max input parse is 900 seconds. max memory allocation is 640M, and post max is 640M.

Install hangs on the database creation step.

[2020-05-31 17:00:49] mautic.ERROR: SCHEMA ERROR: An exception occurred while executing ‘SELECT f.alias, f.is\_unique\_identifer as is\_unique, f.type, f.object FROM lead\_fields f WHERE f.object = ‘lead’ ORDER BY f.field\_order ASC’: SQLSTATE[42S02]: Base table or view not found: 1146 Table ‘messagingatc\_mautic.lead\_fields’ doesn’t exist

Any ideas?

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**Author:** ![pierre\_a](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/pierre_a/32/7031_2.png) [@pierre\_a](https://forum.mautic.org/u/pierre_a)\
**Post date:** [April 25, 2022, 3:58pm UTC](https://forum.mautic.org/t/500-error-on-install-schema-error/14578/2 "2022-04-25T15:58:20Z")

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Hello @oguruma,

Can you try again with a newer version of Mautic and tell us if you still have this problem?

Pierre