Hello, sorry to hear you are having this issue. First, can you try Verifying the Integrity of your Game Files. As shown here -https://support.sega.com/hc/en-gb/articles/9997753543185
Next, can you remove your Cache/Preferences folders, as shown here - https://support.sega.com/hc/en-gb/articles/9997644231185
If still crashing can you please send us your save file, plus any crash dumps you have. These can be found - C:\Users\Your Windows Username\Documents\Sports Interactive\Football Manager 2023\crash dumps