I’m sorry you had a crash. I haven’t been able to replicate it. Can you let me know the hardware or emulator you are using to run it, and whether it is the text only or graphics version? Is it a full lock up, return to BASIC or meeting the Grim Reaper?
Would you be able to do me a favour and try a different emulator, such as this online one: https://jsspeccy.zxdemo.org/? I don't have Fuse set up with the 128K ROMs, but it works fine on Speculator. Also the 128K Spectrum emulator on ZX Spectrum Next.