"EXCEPTION_ACCESS_VIOLATION" error in Lightroom Classic

Try in a first step to reset the preferences of Lightroom Classic:  How to reset Lightroom Classic preferences (adobe.com)

It's recommended to backup your preferences before you reset the preferences to the default settings: 

https://helpx.adobe.com/lightroom-classic/kb/preference-file-and-other-file-locations.html

If this doesn't help check if your catalog is faulty. Try the following steps:

Hold the Ctrl-Key while starting LrC. This opens a catalog selection dialog.

First select the appropriate recent catalog and let it check it – note the checkmark "Test integrity of this catalog" to check its integrity. If that doesn't help, try to create a new one and see if this catalog works. If yes, you could then try to import your current catalog into the new one.

Is your system up-to-date? Do you have installed all recent updates and patches for the operating system and the device drivers, especially the graphic driver. If you have a NVidia graphic card installed, make sure that you are using the recent Studio version of the driver, not the Game Ready version.

If it's possible please provide a copy of your 'System Info' @Sameer K wrote. This can be get from the LrC Help > System Info menu item. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.

Hey, @default8hj8wa0yotm1. Welcome to the Lightroom Community. I'll need more info to help you figure this out. If Lightroom Classic launches and stays up for a minute, please share the system info from Lightroom by going to Help > System info, copying and pasting it into a text document, uploading it, and attaching it here.