# HTTP ERROR 500 when trying to open a contact

**URL:** <https://forum.mautic.org/t/http-error-500-when-trying-to-open-a-contact/10543>\
**Category:** Product Support\
**Created:** [May 29, 2018, 11:06am UTC](https://forum.mautic.org/t/http-error-500-when-trying-to-open-a-contact/10543 "2018-05-29T11:06:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![FrancescaZ](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/francescaz/32/194_2.png) [@FrancescaZ](https://forum.mautic.org/u/FrancescaZ)\
**Post date:** [May 29, 2018, 11:06am UTC](https://forum.mautic.org/t/http-error-500-when-trying-to-open-a-contact/10543/1 "2018-05-29T11:06:08Z")

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Hello,

When I try to open a contact from contact tab I got HTTP ERROR 500 (if I open the contact in a new tab. If I just stay on the same page, nothing happens).

Recently, I upgraded Mautic to v2.13.1  
and I cleaned up old data with php /path/to/mautic/app/console mautic:maintenance:cleanup

PHP Version 7.0.30-0ubuntu0.16.04.1

Log errors:  
[Tue May 29 15:11:00.134811 2018] [:error] [pid 24297] [client XXX.XXX.XXX.XXX:XXXXXX] PHP Fatal error: Uncaught UnexpectedValueException: The stream or file “/app/logs/mautic\_prod-2018-05-29.php” could not be opened: failed to open stream: Permission denied in /vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php:107\nStack trace:\n#0 /vendor/monolog/monolog/src/Monolog/Handler/RotatingFileHandler.php(107): Monolog\Handler\StreamHandler-\>write(Array)\n#1 /vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php(37): Monolog\Handler\RotatingFileHandler-\>write(Array)\n#2 /vendor/monolog/monolog/src/Monolog/Logger.php(337): Monolog\Handler\AbstractProcessingHandler-\>handle(Array)\n#3 /vendor/monolog/monolog/src/Monolog/Logger.php(518): Monolog\Logger-\>addRecord(400, ‘PHP Error: Unca…’, Array)\n#4 /app/bundles/CoreBundle/ErrorHandler/ErrorHandler.php(432): Monolog\Logger-\>log(400, ‘PHP Error: Unca…’, Array)\n#5 /app/bundles/Core in /vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php on line 107, referer: /s/contacts

Thanks,  
Francesca

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**Author:** ![FrancescaZ](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/francescaz/32/194_2.png) [@FrancescaZ](https://forum.mautic.org/u/FrancescaZ)\
**Post date:** [May 30, 2018, 5:41am UTC](https://forum.mautic.org/t/http-error-500-when-trying-to-open-a-contact/10543/2 "2018-05-30T05:41:06Z")

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Hi, thank you.

Two weeks ago we performed the latest upgrade with the webinterface. But due to your suggestion we relaunched the upgrade procedure with SSH:  
wget [https://raw.githubusercontent.com/mautic/mautic/master/upgrade.php](https://raw.githubusercontent.com/mautic/mautic/master/upgrade.php)  
php upgrade.php

and this solved the contact page problem

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**Author:** ![FrancescaZ](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/francescaz/32/194_2.png) [@FrancescaZ](https://forum.mautic.org/u/FrancescaZ)\
**Post date:** [May 31, 2018, 7:16am UTC](https://forum.mautic.org/t/http-error-500-when-trying-to-open-a-contact/10543/3 "2018-05-31T07:16:38Z")

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Great.  
Thank you, MxyzptlkFishStix!