localhost/phpmyadmin error 500

Question

I did the installation of phpmyadmin, it worked correctly, I set up the banks and tested my websites locally. But when I went to turn on the pc again everything works properly, but when I access localhost/phpmyadmin, it shows error 500.

"etc/phpmyadmin/. htpasswd" file is empty.

Browser error

Internal Server Error

The server encountered an Internal error or misconfiguration and was Unable to complete your request.

Please contact the server Administrator at webmaster@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

Apache/2.4.10 (Ubuntu) Server at localhost Port 80

The log of /var/log/apache2/error.log :

PHP Warning: PHP Startup: Unable to load Dynamic library '/usr/lib/php5/20121212/msql.so' - /usr/lib/php5/20121212/msql.so: cannot open Shared Object file: No such file or directory in Unknown on line 0 [Sun Jun 28 21:07:15.004913 2015] [mpm_prefork:notice] [pid 1501] AH00163: Apache/2.4.10 (Ubuntu) PHP/5.5.12-2ubuntu4.4 configured -- resuming normal Operations [Sun Jun 28 21:07:15.004943 2015] [core:notice] [pid 1501] AH00094: Command line: '/usr/sbin/apache2' [Tue Jun 30 00:35:39.246401 2015] [mpm_prefork:notice] [pid 1501] AH00169: Caught SIGTERM, Shutting down PHP Warning: PHP Startup: Unable to load Dynamic library '/usr/lib/php5/20121212/msql.so' - /usr/lib/php5/20121212/msql.so: cannot open Shared Object file: No such file or directory in Unknown on line 0 [Tue Jun 30 13:46:38.867678 2015] [mpm_prefork:notice] [pid 1406] AH00163: Apache/2.4.10 (Ubuntu) PHP/5.5.12-2ubuntu4.4 configured -- resuming normal Operations [Tue Jun 30 13:46:38.867710 2015] [core:notice] [pid 1406] AH00094: Command line: '/usr/sbin/apache2' [Tue Jun 30 15:00:13.966856 2015] [authn_file:error] [pid 5421] (2)No such file or directory: [client 127.0.0.1:35446] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 15:00:17.832856 2015] [authn_file:error] [pid 5422] (2)No such file or directory: [client 127.0.0.1:35447] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 15:00:34.908541 2015] [authn_file:error] [pid 1547] (2)No such file or directory: [client 127.0.0.1:35464] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 15:00:43.087793 2015] [authn_file:error] [pid 5415] (2)No such file or directory: [client 127.0.0.1:35471] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 15:00:46.369437 2015] [authn_file:error] [pid 1548] (2)No such file or directory: [client 127.0.0.1:35472] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 15:00:50.280744 2015] [authn_file:error] [pid 5421] (2)No such file or directory: [client 127.0.0.1:35475] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 17:54:32.515644 2015] [authn_file:error] [pid 5422] (2)No such file or directory: [client 127.0.0.1:39847] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 17:54:49.863831 2015] [authn_file:error] [pid 5424] (2)No such file or directory: [client 127.0.0.1:39849] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 17:54:51.616703 2015] [authn_file:error] [pid 1550] (2)No such file or directory: [client 127.0.0.1:39850] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 17:54:54.522238 2015] [authn_file:error] [pid 1551] (2)No such file or directory: [client 127.0.0.1:39851] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 17:54:57.637137 2015] [authn_file:error] [pid 5425] (2)No such file or directory: [client 127.0.0.1:39852] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 21:46:40.423765 2015] [authn_file:error] [pid 1547] (2)No such file or directory: [client 127.0.0.1:40351] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 21:46:41.115102 2015] [authn_file:error] [pid 1548] (2)No such file or directory: [client 127.0.0.1:40352] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 21:46:41.629927 2015] [authn_file:error] [pid 1549] (2)No such file or directory: [client 127.0.0.1:40353] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 21:46:43.407242 2015] [authn_file:error] [pid 5422] (2)No such file or directory: [client 127.0.0.1:40354] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 21:47:10.720893 2015] [mpm_prefork:notice] [pid 1406] AH00169: Caught SIGTERM, Shutting down PHP Warning: PHP Startup: Unable to load Dynamic library '/usr/lib/php5/20121212/msql.so' - /usr/lib/php5/20121212/msql.so: cannot open Shared: https://askubuntu.com/questions/19127/how-to-access-phpmyadmin-after-installation [Tue Jun 30 22:01:47.726980 2015] [mpm_prefork:notice] [pid 1489] AH00169: Caught SIGTERM, Shutting down PHP Warning: PHP Startup: Unable to load Dynamic library '/usr/lib/php5/20121212/msql.so' - /usr/lib/php5/20121212/msql.so: cannot open Shared Object file: No such file or directory in Unknown on line 0 [Tue Jun 30 22:01:48.756201 2015] [mpm_prefork:notice] [pid 3915] AH00163: Apache/2.4.10 (Ubuntu) PHP/5.5.12-2ubuntu4.4 configured -- resuming normal Operations [Tue Jun 30 22:01:48.756240 2015] [core:notice] [pid 3915] AH00094: Command line: '/usr/sbin/apache2' [Tue Jun 30 22:02:07.218562 2015] [authn_file:error] [pid 3919] (2)No such file or directory: [client 127.0.0.1:36997] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:02:08.733756 2015] [authn_file:error] [pid 3920] (2)No such file or directory: [client 127.0.0.1:36999] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:02:17.126043 2015] [authn_file:error] [pid 3921] (2)No such file or directory: [client 127.0.0.1:37000] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:04:17.857270 2015] [authn_file:error] [pid 3922] (2)No such file or directory: [client 127.0.0.1:37020] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:04:18.417800 2015] [authn_file:error] [pid 3923] (2)No such file or directory: [client 127.0.0.1:37021] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:04:18.638678 2015] [authn_file:error] [pid 3919] (2)No such file or directory: [client 127.0.0.1:37022] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:04:18.840986 2015] [authn_file:error] [pid 3920] (2)No such file or directory: [client 127.0.0.1:37023] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:04:19.437516 2015] [authn_file:error] [pid 3921] (2)No such file or directory: [client 127.0.0.1:37024] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:04:23.563813 2015] [mpm_prefork:notice] [pid 3915] AH00169: Caught SIGTERM, Shutting down PHP Warning: PHP Startup: Unable to load Dynamic library '/usr/lib/php5/20121212/msql.so' - /usr/lib/php5/20121212/msql.so: cannot open Shared Object file: No such file or directory in Unknown on line 0 [Tue Jun 30 22:04:24.680801 2015] [mpm_prefork:notice] [pid 4121] AH00163: Apache/2.4.10 (Ubuntu) PHP/5.5.12-2ubuntu4.4 configured -- resuming normal Operations [Tue Jun 30 22:04:24.680863 2015] [core:notice] [pid 4121] AH00094: Command line: '/usr/sbin/apache2' [Tue Jun 30 22:04:28.451575 2015] [authn_file:error] [pid 4125] (2)No such file or directory: [client 127.0.0.1:37025] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:04:29.169342 2015] [authn_file:error] [pid 4126] (2)No such file or directory: [client 127.0.0.1:37026] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:04:29.403142 2015] [authn_file:error] [pid 4127] (2)No such file or directory: [client 127.0.0.1:37027] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:04:30.105557 2015] [authn_file:error] [pid 4128] (2)No such file or directory: [client 127.0.0.1:37028] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:06:20.142989 2015] [authn_file:error] [pid 4129] (2)No such file or directory: [client 127.0.0.1:37068] AH01620: Could not open password file: /etc/phpmyadmin/. htpasswd [Tue Jun 30 22:10:25.920766 2015] [mpm_prefork:notice] [pid 4121] AH00169: Caught SIGTERM, Shutting down PHP Warning: PHP Startup: Unable to load Dynamic library '/usr/lib/php5/20121212/msql.so' - /usr/lib/php5/20121212/msql.so: cannot open Shared Object file: No such file or directory in Unknown on line 0 [Tue Jun 30 22:10:27.044367 2015] [mpm_prefork:notice] [pid 4254] AH00163: Apache/2.4.10 (Ubuntu) PHP/5.5.12-2ubuntu4.4 configured -- resuming normal Operations [Tue Jun 30 22:10:27.044450 2015] [core:notice] [pid 4254] AH00094: Command line: '/usr/sbin/apache2' [Tue Jun 30 22:10:32.278887 2015] [authn_file:error] [pid 4258] (2)No such file or directory: [client 127.0.0.1:37075] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:10:32.888916 2015] [authn_file:error] [pid 4259] (2)No such file or directory: [client 127.0.0.1:37076] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:10:33.118904 2015] [authn_file:error] [pid 4260] (2)No such file or directory: [client 127.0.0.1:37077] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:10:33.292940 2015] [authn_file:error] [pid 4261] (2)No such file or directory: [client 127.0.0.1:37078] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:10:33.491418 2015] [authn_file:error] [pid 4262] (2)No such file or directory: [client 127.0.0.1:37079] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:10:34.102843 2015] [authn_file:error] [pid 4258] (2)No such file or directory: [client 127.0.0.1:37080] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:10:34.296133 2015] [authn_file:error] [pid 4259] (2)No such file or directory: [client 127.0.0.1:37081] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:10:34.476782 2015] [authn_file:error] [pid 4260] (2)No such file or directory: [client 127.0.0.1:37082] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:14:42.034367 2015] [authn_file:error] [pid 4381] (2)No such file or directory: [client 127.0.0.1:37268] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:15:21.700548 2015] [authn_file:error] [pid 4260] (2)No such file or directory: [client 127.0.0.1:37376] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd, referer: http://fabioled.blog.com/2011/06/07/acesso-negado-para-usuario-root-no-mysql-e-phpmyadmin-error-1045-28000-access-denied-for-user-rootlocalhost-using-password-yes/ [Tue Jun 30 22:19:27.795437 2015] [authn_file:error] [pid 4262] (2)No such file or directory: [client 127.0.0.1:37388] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd, referer: http://www.vivaolinux.com.br/dica/Acesso-negado-para-usuario-root-no-MySQL-e-PhpMyAdmin [Tue Jun 30 22:20:14.349853 2015] [authn_file:error] [pid 4261] (2)No such file or directory: [client 127.0.0.1:37402] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:20:25.955177 2015] [authn_file:error] [pid 4260] (2)No such file or directory: [client 127.0.0.1:37404] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:20:36.769030 2015] [authn_file:error] [pid 4375] (2)No such file or directory: [client 127.0.0.1:37405] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:24:19.984276 2015] [authn_file:error] [pid 4380] (2)No such file or directory: [client 127.0.0.1:37486] AH01620: Could not open password file: /usr/share/phpmyadmin/. htpasswd [Tue Jun 30 22:35:54.570197 2015] [mpm_prefork:notice] [pid 4254] AH00169: Caught SIGTERM, Shutting down PHP Warning: PHP Startup: Unable to load Dynamic library '/usr/lib/php5/20121212/msql.so' - /usr/lib/php5/20121212/msql.so: cannot open Shared Object file: No such file or directory in Unknown on line 0 [Tue Jun 30 22:35:55.614279 2015] [mpm_prefork:notice] [pid 5246] AH00163: Apache/2.4.10 (Ubuntu) PHP/5.5.12-2ubuntu4.4 configured -- resuming normal Operations [Tue Jun 30 22:35:55.614330