Hi Yin,
I am sorry for the delay.
I have checked the error log, and it says you have a float value 7.2e+7 in your chr column?
Is it possible that position was shifted to chr column for some SNPs?
Also both chr and position columns are expected to have integer not float, please convert any float values to integer for your position.
If you have further questions, please let me know.
Best,
Kyoko