Slack (got by snap) crashing on startup

Today, after a reboot, I'm not able anymore to run slack app. I can see its window starting to drow but than it crashed. I cannot see useful information on journal. I'm running a Ubuntu 20.04 and the varsion of slack is 4.7 (the latest stable, updated 7 days ago)

here the info about snap package:

snap info slack
name: slack
summary: Team communication for the 21st century.
publisher: Slack✓
store-url: https://snapcraft.io/slack
contact: https://get.slack.help/hc/en-us
license: unset
description: |
  Caution: Slack for Linux is in beta. We’re still busy adding features and ironing out potential
  issues.

  Slack brings team communication and collaboration into one place so you can get more work done,
  whether you belong to a large enterprise or a small business. Check off your to-do list and move
  your projects forward by bringing the right people, conversations, tools, and information you need
  together. Slack is available on any device, so you can find and access your team and your work,
  whether you’re at your desk or on the go.

  Scientifically proven (or at least rumored) to make your working life simpler, more pleasant, and
  more productive. We hope you’ll give Slack a try.

  Stop by and learn more at: https://slack.com/
commands:
  - slack
snap-id: JUJH91Ved74jd4ZgJCpzMBtYbPOzTlsD
tracking: latest/stable
refresh-date: today at 09:05 CEST
channels:
  latest/stable: 4.7.0 2020-07-07 (25) 151MB classic
  latest/candidate: ↑
  latest/beta: ↑
  latest/edge: 3.3.1 2018-08-31 (8) 148MB classic
installed: 4.7.0 (25) 151MB classic