Ubuntu 21.04 - Ubuntu Software not opening [duplicate]
Solution 1:
Try to install the candidate version. It worked for me.
snap remove snap-store
snap install snap-store --candidate
Note: After bug 1931380 gets fixed, you will need to switch back to the default channel.
Update: the default channel has fixed the bug. You should automatically get the stable refresh within 24 hours. If you switched to the candidate channel, you will need to switch back to default.
$ snap refresh