Hi Seuck,
I've just refreshed all the binaries (inc. the Mac build) with from the latest version of PICO-8 (v0.1.12c), which I believe uses a version of SDL that is 64-bit compatible.
Please let me know if you have any further issues (and if you do - we might have to wait for the next P8 release)
Thanks again for your support! 😊