Adobe Lightroom classic crashing

Please clarify: Does the entire computer crash and have to be restarted? Or is it just Lightroom Classic crashing?

Unfortunately you haven't given us any information about your system. Therefore, all proposed solutions are a look into the crystal ball

Do you get an error message? If yes, please post the message here word-by-word.

In case you get a crash report, do you’ve sent it to Adobe?

What has been changed on your system before the error occur?

Please provide a copy of your 'System Info'. This can be get from the Lightroom menu item Help > System Info. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.