After system update snap apps not working

I'm using Ubuntu desktop 20.04.2 GNOME 3.36.8 x11. Recently (one month back) I updated my system and since then snap apps are not starting.

Following are some logs in /var/log/syslog:

--- ubuntu20 android-studio_android-studio.desktop[5939]: env: ‘/snap/bin/android-studio’: No such file or directory

--- ubuntu20 chromium_chromium.desktop[5990]: env: ‘/snap/bin/chromium’: No such file or directory

--- ubuntu20 gnome-system-monitor_gnome-system-monitor.desktop[5998]: env: ‘/snap/bin/gnome-system-monitor’: No such file or directory

I have checked the /snap/bin folder and all the links in there are broken. All the links are pointing to /usr/bin/snap, but there is no such file.

I was able to run gnome-system-monitor from command line, but I don't know how to start other apps. I badly need Chromium. I have created a couple of profiles which have lots of bookmarks and history.

Edit: Unable to repair snap. I logged into Windows 7 (dual boot, rarely use it). It ran a disk scan and found lots of broken files (html, php) on the C drive. Does this have any connection?

Looks like snapd is not there in your device. Run

sudo apt install snapd

Now, you will be able to use snap apps.