Crash while working

to reinforce what Philip Harvey said, you need to tell us your hardware and OS and premiere version.  Saying that you have sufficient hardware is not... sufficient.

Peru Bob's suggestions are great, but there are many other troubleshooting steps to take but we have to narrow them down to ones that are pertinent to your system.   

It's never easy to troubleshoot from a distance and we really need to approach this in a systematic fashion if we're going to have any chance of success.  

We can't tell your experience level and don't mean to talk down to you, but if you need any help detailing your specs, post back and we can walk you thru the process.

Some things to do, and more information needed for someone to help...
-PPro Editing Information FAQ https://community.adobe.com/t5/Premiere-Pro/FAQ-What-information-should-I-provide-when-asking-a-question-on/td-p/3929027
-Troubleshooting https://community.adobe.com/t5/Premiere-Pro/Unofficial-Premiere-Pro-Troubleshooting-Guide/td-p/8789200
-Mac only https://community.adobe.com/t5/Premiere-Pro/FAQ-Basic-Troubleshooting-amp-Maintenance-for-Premiere-Pro-on/td-p/4788764

Delete the Media Cache and Media Cache files:
https://community.adobe.com/t5/premiere-pro/faq-how-to-clear-your-media-cache-in-30-seconds-in-premiere-pro-2020/m-p/11017257/thread-id/260446?page=1

If that doesn't work,try resetting the preferences:
https://community.adobe.com/t5/premiere-pro/faq-how-to-reset-trash-preferences-in-premiere-pro/td-p/8236158?page=1

If that doesn't work, try resetting the Workspaces:
Reset a workspace
Reset the current workspace to return to its original, saved layout of panels.
1. Do one of the following:
• Click the Workspace menu icon and select Reset to Saved Layout.
• Choose Window > Workspace > Reset to Saved Layout.
from here:
https://helpx.adobe.com/premiere-pro/using/workspaces.html

If that doesn't work, try Preferences > Audio Hardware and set Input to None.

If that doesn’t work, try updating or rolling back your graphics driver directly from the video card manufacturer’s site. If NVIDIA, do a clean install of the latest Studio Driver (NOT the Game Driver).

If that doesn't work, try creating a new project and import the old one into it.

Also, please help us help you:
https://community.adobe.com/t5/premiere-pro/faq-what-information-should-i-provide-when-asking-a-question-on-this-forum/td-p/3929027?page=1

Is it happening while editing? What kind of media are you working with and what is your workflow? Using effects? Color grading? Do you use third-party plugins? Does it crash while starting up the software? Randomly?

What is your hardware?

I'm not sure if you are just making a statement or if you want to try to work through some things, but if you want to try to get help you'll need to provide information.