# 1.4.1 to 2.0 Internal error 500
**URL:** https://forum.mautic.org/t/1-4-1-to-2-0-internal-error-500/5071
**Category:** Product Support
**Created:** [August 26, 2016, 6:24pm UTC](https://forum.mautic.org/t/1-4-1-to-2-0-internal-error-500/5071 "2016-08-26T18:24:34Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@orangeattitude](https://forum.mautic.org/u/orangeattitude)
#### Post date: [August 26, 2016, 6:24pm UTC](https://forum.mautic.org/t/1-4-1-to-2-0-internal-error-500/5071/1 "2016-08-26T18:24:34Z")
Hi guys.
I just did an upgrade from 1.4.1 to 2.0 whit CLI
The installation proceeded without error, but when I try to enter mautic I get a 500 error.
My server has PHP. 6.5.24 and 5.6.31 MSQL
The log says:
[08/26/2016 18:45:16] mautic.NOTICE: Symfony Component Debug Exception ContextErrorException: Catchable Fatal Error: Argument 1 passed to Symfony Component Translation Loader ArrayLoader :: flatten () must be of the type array, boolean given, called in /home/orangema/public\_html/crm/fotoarteuy/vendor/symfony/translation/Loader/ArrayLoader.php on line 28 and defined (uncaught exception) at / home / orangema / public\_html / crm /fotoarteuy/vendor/symfony/translation/Loader/ArrayLoader.php line 49 while running console command `mautic: segments: update` [] []
Anybody can help me ?
---
### Author:  [@orangeattitude](https://forum.mautic.org/u/orangeattitude)
#### Post date: [August 26, 2016, 6:24pm UTC](https://forum.mautic.org/t/1-4-1-to-2-0-internal-error-500/5071/2 "2016-08-26T18:24:34Z")
Hi guys.
I just did an upgrade from 1.4.1 to 2.0 whit CLI
The installation proceeded without error, but when I try to enter mautic I get a 500 error.
My server has PHP. 6.5.24 and 5.6.31 MSQL
The log says:
[08/26/2016 18:45:16] mautic.NOTICE: Symfony Component Debug Exception ContextErrorException: Catchable Fatal Error: Argument 1 passed to Symfony Component Translation Loader ArrayLoader :: flatten () must be of the type array, boolean given, called in /home/orangema/public\_html/crm/fotoarteuy/vendor/symfony/translation/Loader/ArrayLoader.php on line 28 and defined (uncaught exception) at / home / orangema / public\_html / crm /fotoarteuy/vendor/symfony/translation/Loader/ArrayLoader.php line 49 while running console command `mautic: segments: update` [] []
Anybody can help me ?
---
### Author:  [@Rodrigo\_Barbos](https://forum.mautic.org/u/Rodrigo_Barbos)
#### Post date: [October 25, 2016, 9:43am UTC](https://forum.mautic.org/t/1-4-1-to-2-0-internal-error-500/5071/3 "2016-10-25T09:43:06Z")
Olá, Também tive o mesmo problema ao fazer essa atualização de 1.4 para 2.2.
Será que alguém tem uma solução para estes erros? Andei executando alguns scripts php no banco e consegui fazer com que voltasse algumas funcionalidades, mas ainda contém erros 500. Dê uma olhada neste endereço “[https://johnlinhart.com/blog/uh-oh-mautic-upgrade-was-not-successful](https://johnlinhart.com/blog/uh-oh-mautic-upgrade-was-not-successful)” talvez possa te ajudar.
---
### Author:  [@danwaterloo](https://forum.mautic.org/u/danwaterloo)
#### Post date: [October 25, 2016, 11:23am UTC](https://forum.mautic.org/t/1-4-1-to-2-0-internal-error-500/5071/4 "2016-10-25T11:23:15Z")
It sounds like symphony is complaining about not getting a proper response. When I upgraded to 2.1.1, I had a similar 500 error.
You might try this to make sure all of the database conversion commands were executed…
[https://www.mautic.org/community/index.php/conversation/post/16500](https://www.mautic.org/community/index.php/conversation/post/16500)