The root filesystem on /dev/sda3 requires a manual fsck

When I turn on my computer, it sends me directly to the GRUB menu. When I select Ubuntu, it sends me to a black screen. When I select Advanced Options, it sends me to a series of commands where I get an error: enter image description here / dev / sda3: Unexpected Inconsistency; RUN fsck MANUALLY (i.e., without -a or -p options) fsck exited status code 4 The root filesystem on / dev / sda3 requires a manual fsck BusyBox v1.27.2 (Ubuntu 1: 1.27.2-2ubntu3) built-in shell (ash) Enter ‘help’ for a list of built-in commands.