WHMCS 500 Internal Server Error

[n1kko]

I have installed WHMCs which installed fine but when I try access the front end or admin I see 500 Internal Server Error what could cause this?

[n1kko]

Some times works and other times 500 Internal Server Error

[imperio]

Hi,
what templates (nginx, apache) a you using for domain ?
what operating system on you server ?

[n1kko]

I have apache set as default and nginx ticked set as default running centos 6.5

Thanks

[imperio]

Try to remove APC

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yum remove php-pecl-apc
service httpd restart

[n1kko]

Thanks but still 500 Internal Server Error. If I refresh the page a few times it sometimes works then goes to 500 error again after clicking another link

[imperio]

maybe that problem with .htaccess file or permissions for files

[n1kko]

I have no .htaccess as I thought that would be the problem so removed that. I have checked all file perms and still 500 Error banging my head against the wall LOL

[imperio]

show me please apache and nginx error logs

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/var/log/httpd/error_log
/var/log/httpd/domains/$domain.error.log

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/var/log/nginx/error.log
/var/log/httpd/domains/$domain.error.log

[n1kko]

/var/log/httpd/error_log

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PHP Warning:  Module 'ionCube Loader' already loaded in Unknown on line 0
[Sat Apr 05 16:14:06 2014] [notice] mod_ruid2/0.9.8 enabled
[Sat Apr 05 16:14:06 2014] [notice] Apache/2.2.15 (Unix) DAV/2 mod_fcgid/2.3.9 PHP/5.4.26 mod_ssl/2.2.15 OpenSSL/1.0.0-fips configured -- resuming normal operations
[Sat Apr 05 16:13:44 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:06 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:13:44 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:06 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:13:44 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:06 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:13:44 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:06 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:13:44 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:06 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:13:44 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:06 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:13:44 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:06 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:13:44 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:06 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:11 2014] [notice] caught SIGTERM, shutting down
[Sat Apr 05 16:13:44 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:13:44 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:06 2014] [warn-phpd] The ionCube PHP Loader is disabled because of startup problems. (pid 5955)
[Sat Apr 05 16:14:31 2014] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Sat Apr 05 16:14:31 2014] [notice] Digest: generating secret for digest authentication ...
[Sat Apr 05 16:14:31 2014] [notice] Digest: done
PHP Warning:  Module 'ionCube Loader' already loaded in Unknown on line 0
[Sat Apr 05 16:14:31 2014] [notice] mod_ruid2/0.9.8 enabled
[Sat Apr 05 16:14:32 2014] [notice] Apache/2.2.15 (Unix) DAV/2 mod_fcgid/2.3.9 PHP/5.4.26 mod_ssl/2.2.15 OpenSSL/1.0.0-fips configured -- resuming normal operations

/var/log/httpd/domains/$domain.error.log

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2014/04/05 13:46:47 [error] 2585#0: *72 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET /knowledgebase.php HTTP/1.1", upstream: "http://1.1.1.1:8080/knowledgebase.php", host: "clients.domain.co.uk", referrer: "http://clients.domain.co.uk/"
2014/04/05 13:46:48 [error] 2585#0: *72 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET /knowledgebase.php HTTP/1.1", upstream: "http://1.1.1.1:8080/knowledgebase.php", host: "clients.domain.co.uk", referrer: "http://clients.domain.co.uk/"
2014/04/05 13:46:50 [error] 2585#0: *72 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET /knowledgebase.php HTTP/1.1", upstream: "http://1.1.1.1:8080/knowledgebase.php", host: "clients.domain.co.uk", referrer: "http://clients.domain.co.uk/"
[Sat Apr 05 14:06:42 2014] [error] [client 157.55.35.41] File does not exist: /home/admin/web/clients.domain.co.uk/public_html/robots.txt
2014/04/05 14:18:44 [error] 2584#0: *95 upstream prematurely closed connection while reading response header from upstream, client: 157.55.35.41, server: clients.domain.co.uk, request: "GET /register.php HTTP/1.1", upstream: "http://1.1.1.1:8080/register.php", host: "clients.domain.co.uk"
2014/04/05 14:21:26 [error] 2584#0: *98 upstream prematurely closed connection while reading response header from upstream, client: 157.55.35.41, server: clients.domain.co.uk, request: "GET /register.php HTTP/1.0", upstream: "http://1.1.1.1:8080/register.php", host: "clients.domain.co.uk"
[Sat Apr 05 14:28:27 2014] [error] [client 66.249.65.85] File does not exist: /home/admin/web/clients.domain.co.uk/public_html/iviaxrpqblhe.html
2014/04/05 15:11:27 [error] 8188#0: *86 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET /affiliates.php HTTP/1.1", upstream: "http://1.1.1.1:8080/affiliates.php", host: "clients.domain.co.uk", referrer: "http://clients.domain.co.uk/"
[Sat Apr 05 15:11:31 2014] [error] [client 82.23.68.107] PHP Warning:  Error writing to log file /usr/share/roundcubemail/logs/errors; Please check permissions in /usr/share/roundcubemail/program/lib/Roundcube/rcube.php on line 1060
[Sat Apr 05 15:11:31 2014] [error] [client 82.23.68.107] PHP Warning:  Configuration error. Unsupported database driver:  in /usr/share/roundcubemail/program/lib/Roundcube/rcube.php on line 1160
2014/04/05 15:20:50 [error] 956#0: *18 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET / HTTP/1.1", upstream: "http://1.1.1.1:8080/", host: "clients.domain.co.uk", referrer: "https://www.google.co.uk/"
2014/04/05 15:20:52 [error] 956#0: *18 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET / HTTP/1.1", upstream: "http://1.1.1.1:8080/", host: "clients.domain.co.uk", referrer: "https://www.google.co.uk/"
2014/04/05 15:20:54 [error] 956#0: *18 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET / HTTP/1.1", upstream: "http://1.1.1.1:8080/", host: "clients.domain.co.uk", referrer: "https://www.google.co.uk/"
2014/04/05 15:21:07 [error] 956#0: *18 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET / HTTP/1.1", upstream: "http://1.1.1.1:8080/", host: "clients.domain.co.uk", referrer: "https://www.google.co.uk/"
2014/04/05 15:21:08 [error] 956#0: *18 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET / HTTP/1.1", upstream: "http://1.1.1.1:8080/", host: "clients.domain.co.uk", referrer: "https://www.google.co.uk/"
2014/04/05 15:21:26 [error] 956#0: *26 upstream prematurely closed connection while reading response header from upstream, client: 157.55.35.41, server: clients.domain.co.uk, request: "GET /register.php HTTP/1.0", upstream: "http://1.1.1.1:8080/register.php", host: "clients.domain.co.uk"
2014/04/05 15:33:47 [error] 957#0: *103 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET / HTTP/1.1", upstream: "http://1.1.1.1:8080/", host: "clients.domain.co.uk", referrer: "https://www.google.co.uk/"
2014/04/05 15:33:48 [error] 957#0: *103 upstream prematurely closed connection while reading response header from upstream, client: 82.23.68.107, server: clients.domain.co.uk, request: "GET / HTTP/1.1", upstream: "http://1.1.1.1:8080/", host: "clients.domain.co.uk", referrer: "https://www.google.co.uk/"
2014/04/05 15:36:26 [error] 956#0: *129 upstream prematurely closed connection while reading response header from upstream, client: 188.132.231.87, server: clients.domain.co.uk, request: "GET /cart.php?a=byroe&templatefile=../../../configuration.php%00 HTTP/1.1", upstream: "http://1.1.1.1:8080/cart.php?a=byroe&templatefile=../../../configuration.php%00", host: "clients.domain.co.uk"
[Sat Apr 05 16:18:30 2014] [error] [client 208.115.113.91] File does not exist: /home/admin/web/clients.domain.co.uk/public_html/robots.txt