Hello, I am facing problem on my website as it only shows connection time out and I can't even go to admin section.

I have installed 17.10 Ubuntu version.

This is what my log looks like. total 444384 -rw-r–r-- 1 root root 2704 Jun 17 18:00 alternatives.log -rw-r–r-- 1 root root 734 Jun 14 06:55 alternatives.log.1 -rw-r–r-- 1 root root 194 May 3 02:46 alternatives.log.2.gz -rw-r–r-- 1 root root 173 Mar 20 06:12 alternatives.log.3.gz -rw-r–r-- 1 root root 661 Jan 23 06:43 alternatives.log.4.gz -rw-r----- 1 root adm 0 Mar 30 06:25 apport.log -rw-r----- 1 root adm 113 Mar 29 16:07 apport.log.1 drwxr-xr-x 2 root root 4096 Jun 21 09:30 apt -rw-r----- 1 syslog adm 2604159 Jun 27 05:49 auth.log -rw-r----- 1 syslog adm 35989156 Jun 25 06:25 auth.log.1 -rw-r----- 1 syslog adm 1071034 Jun 17 06:25 auth.log.2.gz -rw-r----- 1 syslog adm 1993835 Jun 11 06:25 auth.log.3.gz -rw-r----- 1 syslog adm 1791510 Jun 3 06:25 auth.log.4.gz -rw------- 1 root utmp 107454720 Jun 27 05:47 btmp -rw------- 1 root utmp 301344000 Jun 1 06:25 btmp.1 -rw-r–r-- 1 root root 28835 Jun 20 11:00 cloud-init-output.log -rw-r–r-- 1 syslog adm 964926 Jun 20 11:00 cloud-init.log drwxr-xr-x 2 root root 4096 Oct 24 2017 dist-upgrade -rw-r–r-- 1 root root 210750 Jun 21 09:30 dpkg.log -rw-r–r-- 1 root root 70776 May 9 06:21 dpkg.log.1 -rw-r–r-- 1 root root 1965 Apr 24 06:46 dpkg.log.2.gz -rw-r–r-- 1 root root 2566 Mar 29 15:08 dpkg.log.3.gz -rw-r–r-- 1 root root 1654 Feb 27 06:54 dpkg.log.4.gz -rw-r–r-- 1 root root 18488 Feb 1 11:16 dpkg.log.5.gz -rw-r–r-- 1 root root 0 Jun 16 08:41 firewalld drwxr-sr-x+ 3 root systemd-journal 4096 May 3 02:32 journal -rw-r----- 1 syslog adm 0 Jun 25 06:25 kern.log -rw-r----- 1 syslog adm 312213 Jun 22 08:01 kern.log.1 -rw-r----- 1 syslog adm 119331 Jun 17 06:15 kern.log.2.gz -rw-r----- 1 syslog adm 118805 Jun 14 06:24 kern.log.3.gz -rw-r----- 1 syslog adm 610 May 3 02:46 kern.log.4.gz -rw-rw-r-- 1 root utmp 292584 Jun 27 05:49 lastlog drwx------ 2 root root 4096 Jan 19 03:02 letsencrypt drwxr-xr-x 2 root root 4096 Oct 15 2017 lxd drwxr-s— 2 mysql adm 4096 Jun 26 06:25 mysql drwxr-xr-x 2 root adm 4096 Jun 21 06:25 nginx -rw------- 1 root root 56 Jun 25 06:25 php7.1-fpm.log -rw------- 1 root root 618 Jun 20 11:00 php7.1-fpm.log.1 -rw------- 1 root root 160 Apr 16 16:03 php7.1-fpm.log.10.gz -rw------- 1 root root 76 Apr 9 06:25 php7.1-fpm.log.11.gz -rw------- 1 root root 158 Apr 8 08:24 php7.1-fpm.log.12.gz -rw------- 1 root root 254 Jun 17 06:12 php7.1-fpm.log.2.gz -rw------- 1 root root 159 Jun 7 06:13 php7.1-fpm.log.3.gz -rw------- 1 root root 76 May 27 06:25 php7.1-fpm.log.4.gz -rw------- 1 root root 162 May 25 13:34 php7.1-fpm.log.5.gz -rw------- 1 root root 195 May 20 10:35 php7.1-fpm.log.6.gz -rw------- 1 root root 186 May 10 15:05 php7.1-fpm.log.7.gz -rw------- 1 root root 206 May 6 15:19 php7.1-fpm.log.8.gz -rw------- 1 root root 169 Apr 26 16:29 php7.1-fpm.log.9.gz -rw-r----- 1 syslog adm 27532 Jun 27 05:49 syslog -rw-r----- 1 syslog adm 33283 Jun 26 06:25 syslog.1 -rw-r----- 1 syslog adm 3777 Jun 25 06:25 syslog.2.gz -rw-r----- 1 syslog adm 3537 Jun 24 06:25 syslog.3.gz -rw-r----- 1 syslog adm 3521 Jun 23 06:25 syslog.4.gz -rw-r----- 1 syslog adm 3570 Jun 22 06:25 syslog.5.gz -rw-r----- 1 syslog adm 35517 Jun 21 06:25 syslog.6.gz -rw-r----- 1 syslog adm 3685 Jun 20 06:25 syslog.7.gz -rw-r----- 1 syslog adm 0 Jun 25 06:25 ufw.log -rw-r----- 1 syslog adm 218457 Jun 22 08:01 ufw.log.1 -rw-r----- 1 syslog adm 351 Jun 17 06:15 ufw.log.2.gz drwxr-x— 2 root adm 4096 Jun 1 06:25 unattended-upgrades drwxr-x— 2 varnishlog varnish 4096 Jun 26 06:25 varnish -rw-r----- 1 root adm 0 Jun 25 06:25 vsftpd.log -rw-r----- 1 root adm 12769 Jun 22 07:49 vsftpd.log.1 -rw------- 1 root root 5191 Jun 16 16:55 vsftpd.log.2 -rw-rw-r-- 1 root utmp 67968 Jun 27 05:49 wtmp -rw-rw-r-- 1 root utmp 5376 Jun 1 05:09 wtmp.1