BUG mysql mysql crashed: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)

The mysql server crashed overnight.

I've tried rebooting, but the following error appears:

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)

Taambém already tried apt-get autoremove, but it stays infinitely in this message (it does not pass from here):

sudo apt-get autoremove Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: linux-image-3.16.0-60-generic linux-image-3.16.0-62-generic linux-image-3.19.0-49-generic linux-image-3.19.0-51-generic 0 upgraded, 0 newly installed, 4 to remove and 101 not upgraded. 1 not fully installed or removed. After this operation, 185 MB disk space will be freed. Do you want to continue? [Y/n] Y (Reading database ... 213878 files and directories currently installed.) Removing linux-image-3.16.0-60-generic (3.16.0-60.80~14.04.1) ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.16.0-60-generic /boot/vmlinuz-3.16.0-60-generic update-initramfs: Deleting /boot/initrd.img-3.16.0-60-generic run-parts: executing /etc/kernel/postrm.d/x-grub-legacy-ec2 3.16.0-60-generic /boot/vmlinuz-3.16.0-60-generic Searching for GRUB installation directory ... found: /boot/grub Searching for default file ... found: /boot/grub/default Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst Searching for splash image ... none found, skipping ... Found kernel: /boot/vmlinuz-4.4.0-137-generic Found kernel: /boot/vmlinuz-4.4.0-128-generic Updating /boot/grub/menu.lst ... done

run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.16.0-60-generic /boot/vmlinuz-3.16.0-60-generic

***!!!! It gets infinitely in this message !!!! ***

Can anyone help?