Thanks for reaching out and sharing the details. I completely understand how frustrating this must be. Could you please confirm which version of Illustrator you're using and the details of your operating system? I checked for any crash logs linked to your community email, but couldn't find any. Please submit the crash report through the Adobe Crash Reporter dialog box and share the email address used for submission via DM, so I can locate the logs. You can follow the steps here: https://adobe.ly/477Ael4.
Also, try the troubleshooting steps mentioned in this article and let me know if it helps: https://adobe.ly/476Jupo.
Looking forward to your update.
Abhishek