Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9e4bdbd9d957645a2565d230d133492cf9989d99d874f8cfe76e025f9df5ac13:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^