We understand how frustrating it can be to encounter crashes in the middle of work. Would you mind trying the suggestions shared in this help article (https://adobe.ly/3ApUDVX) and checking if they help? Also, kindly submit the crash report using your Adobe email address and share it here for quick tracking. Steps are shared here: (https://adobe.ly/3WUL9to). We appreciate your time and patience in helping us resolve this issue.
This is a user to user forum. Most of the people answering questions here are volunteers who are sharing knowledge that they've gained as working professionals. If you honestly want help with your problem then you will have to provide specific details as to what you are actually trying to accomplish and all of the steps that you've taken thus far. Please also provide the exact version of Illustrator and operating system that you are using.