Hi
I have setup an 11 version Nextcloud instance with just one account in it for a friend. Friend lost password of it so I have resetted pass through OCC command in command line but he is still unable to login ! I get an Internal error now each time he tries to login ! Nothing has changed on server and nothing special in NextCloud also so little confused why suddenly it’s no more possible to login on it !
Side note if it can helps I have also an other virtual host running a NextCloud 11 instance without any problems on that same server !!
Thanks
Vincèn
Nextcloud version (eg, 10.0.2): 11 but not sure
Operating system and version (eg, Ubuntu 16.04): Ubuntu 16.04.2
Apache or nginx version (eg, Apache 2.4.25): 2.4.18
PHP version (eg, 5.6): 7
Is this the first time you’ve seen this error?: yep
The output of your Nextcloud log in Admin > Logging: unable to access it 
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
[root@test-2 config]# more config.php
::::::::::::::
config.php
::::::::::::::
<?php
$CONFIG = array (
'instanceid' => 'zzzzzzzzzzzz',
'passwordsalt' => 'e+42zRo/rr/uieuieuie',
'secret' => '+5t/sta',
'trusted_domains' =>
array (
0 => 'mydomain.com',
1 => 'www.mydomain.com',
),
'datadirectory' => '/home/mydomain/data',
'overwrite.cli.url' => 'https://mydomain.com/transmission',
'dbtype' => 'mysql',
'version' => '12.0.1.5',
'dbname' => 'nextcloud',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'dbuser' => 'oc_xxxxx',
'dbpassword' => 'X0ecaMuHz2C/xxxxxxxxxxxx',
'logtimezone' => 'UTC',
'installed' => true,
'maintenance' => false,
'theme' => '',
'loglevel' => 2,
'updater.secret' => '$2y$10$xxxxxxxxxxxxxxxxx',
);
The output of your Apache/nginx/system log in /var/log/____:
[Thu Aug 10 22:09:44.371404 2017] [core:error] [pid 26415] [client 86.210.31.220:54459] End of script output before headers: index.php
[Fri Aug 11 09:58:19.479551 2017] [fcgid:warn] [pid 35521] [client 37.169.225.119:13581] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 09:58:19.479632 2017] [core:error] [pid 35521] [client 37.169.225.119:13581] End of script output before headers: v2.php
[Fri Aug 11 09:58:34.572322 2017] [fcgid:warn] [pid 34283] [client 37.169.225.119:13559] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 09:58:34.572364 2017] [core:error] [pid 34283] [client 37.169.225.119:13559] End of script output before headers: index.php
[Fri Aug 11 09:58:35.577584 2017] [fcgid:warn] [pid 34295] [client 37.169.225.119:13560] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 09:58:35.577637 2017] [core:error] [pid 34295] [client 37.169.225.119:13560] End of script output before headers: v1.php
[Fri Aug 11 10:02:06.542391 2017] [fcgid:warn] [pid 34273] [client 37.169.225.119:13571] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 10:02:06.542453 2017] [core:error] [pid 34273] [client 37.169.225.119:13571] End of script output before headers: index.php
[Fri Aug 11 10:15:20.878827 2017] [fcgid:warn] [pid 38016] [client 86.210.31.220:49735] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 10:15:20.878887 2017] [core:error] [pid 38016] [client 86.210.31.220:49735] End of script output before headers: index.php
[Fri Aug 11 10:19:54.144765 2017] [fcgid:warn] [pid 38488] [client 86.210.31.220:49789] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 10:19:54.144821 2017] [core:error] [pid 38488] [client 86.210.31.220:49789] End of script output before headers: index.php
[Fri Aug 11 10:20:35.449449 2017] [fcgid:warn] [pid 38486] [client 86.210.31.220:49802] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 10:20:35.449497 2017] [core:error] [pid 38486] [client 86.210.31.220:49802] End of script output before headers: index.php
[Fri Aug 11 10:21:11.923233 2017] [fcgid:warn] [pid 34289] [client 86.210.31.220:49810] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 10:21:11.923288 2017] [core:error] [pid 34289] [client 86.210.31.220:49810] End of script output before headers: index.php
[Fri Aug 11 10:23:12.746719 2017] [fcgid:warn] [pid 34280] [client 86.210.31.220:49844] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 10:23:12.746774 2017] [core:error] [pid 34280] [client 86.210.31.220:49844] End of script output before headers: index.php
[Fri Aug 11 10:38:29.377596 2017] [fcgid:warn] [pid 39982] [client 86.210.31.220:50004] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 10:38:29.377647 2017] [core:error] [pid 39982] [client 86.210.31.220:50004] End of script output before headers: index.php
[Fri Aug 11 10:39:20.920039 2017] [fcgid:warn] [pid 40650] [client 86.210.31.220:50021] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 10:39:20.920065 2017] [core:error] [pid 40650] [client 86.210.31.220:50021] End of script output before headers: index.php
[Fri Aug 11 10:58:25.188602 2017] [fcgid:warn] [pid 42733] [client 86.210.31.220:50254] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 10:58:25.188654 2017] [core:error] [pid 42733] [client 86.210.31.220:50254] End of script output before headers: index.php
[Fri Aug 11 10:59:47.769534 2017] [fcgid:warn] [pid 43760] [client 86.210.31.220:50277] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 10:59:47.769590 2017] [core:error] [pid 43760] [client 86.210.31.220:50277] End of script output before headers: index.php
[Fri Aug 11 11:00:26.479445 2017] [fcgid:warn] [pid 43592] [client 86.210.31.220:50309] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 11:00:26.479499 2017] [core:error] [pid 43592] [client 86.210.31.220:50309] End of script output before headers: index.php
[Fri Aug 11 11:01:47.548662 2017] [fcgid:warn] [pid 44345] [client 86.210.31.220:50347] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 11:01:47.548715 2017] [core:error] [pid 44345] [client 86.210.31.220:50347] End of script output before headers: index.php
[Fri Aug 11 11:02:31.090609 2017] [fcgid:warn] [pid 43761] [client 86.210.31.220:50360] mod_fcgid: read data timeout in 31 seconds
[Fri Aug 11 11:02:31.090658 2017] [core:error] [pid 43761] [client 86.210.31.220:50360] End of script output before headers: index.php