我在Ubuntu服务器上安装了PHPMyadmin mysql等。我遵循的说明：At digital ocean指示我出于安全原因创建.htaccess文件以保护phpmyadmin。当我最终得到我的网站我的.htaccess文件没有长时间工作，所以我删除它，现在我不能让phpmyadmin工作。我收到以下错误消息：
[Fri Jun 05 06:34:34.610537 2015] [core:notice] [pid 4135] AH00094:
Command line: '/usr/sbin/apache2'
[Fri Jun 05 12:25:13.261885 2015] [mpm_prefork:notice] [pid 4135] AH00169:
caught SIGTERM, shutting down
[Fri Jun 05 12:25:14.387503 2015] [mpm_prefork:notice] [pid 5360] AH00163:
Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.9 configured -- resuming normal operations
[Fri Jun 05 12:25:14.394515 2015] [core:notice] [pid 5360] AH00094:
Command line: '/usr/sbin/apache2'
[Fri Jun 05 13:57:40.826532 2015] [mpm_prefork:notice] [pid 5360] AH00169:
caught SIGTERM, shutting down
[Fri Jun 05 13:57:41.863560 2015] [mpm_prefork:notice] [pid 6581] AH00163:
Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.9 configured -- resuming normal operations
[Fri Jun 05 13:57:41.863708 2015] [core:notice] [pid 6581] AH00094:
Command line: '/usr/sbin/apache2'
[Fri Jun 05 14:01:55.862080 2015] [mpm_prefork:notice] [pid 6581] AH00169:
caught SIGTERM, shutting down
[Fri Jun 05 14:01:57.009231 2015] [mpm_prefork:notice] [pid 6667] AH00163:
Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.9 configured -- resuming normal operations
[Fri Jun 05 14:01:57.009379 2015] [core:notice] [pid 6667] AH00094:
Command line: '/usr/sbin/apache2'
[Fri Jun 05 14:12:22.861187 2015] [mpm_prefork:notice] [pid 6667] AH00169:
caught SIGTERM, shutting down
[Fri Jun 05 14:12:23.625373 2015] [mpm_prefork:notice] [pid 6801] AH00163:
Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.9 configured -- resuming normal operations
[Fri Jun 05 14:12:23.625471 2015] [core:notice] [pid 6801] AH00094:
Command line: '/usr/sbin/apache2'
[Fri Jun 05 14:14:17.930082 2015] [mpm_prefork:notice] [pid 6801] AH00169:
caught SIGTERM, shutting down
[Fri Jun 05 14:14:18.955532 2015] [mpm_prefork:notice] [pid 6862] AH00163:
Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.9 configured -- resuming normal operations
[Fri Jun 05 14:14:18.955618 2015] [core:notice] [pid 6862] AH00094:
Command line: '/usr/sbin/apache2'
我已经卸载并重新安装了phpmyadmin几次并删除了htaccess文件，但密码和用户名的提示仍然显示出来。有什么想法吗？