Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4c400edfc8747531f73710e8f141ded118931a62533bf9b6793adc730342c528:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^