Hello, first can you try Verifying your Game Files as shown here - https://support.sega.com/hc/en-gb/articles/9997753543185 and Removing your Caches and Preferences as shown here - https://support.sega.com/hc/en-gb/articles/9997644231185
If still crashing, could we please get your save file, your DxDiag file as shown here - https://support.sega.com/hc/en-gb/articles/9997195057553
Plus any Crash Dumps you have, which can be located - Library\Application Support\Sports Interactive/Football Manager 2023\crash dumps
Hope this helps, thank you.