Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b2e709fe18d883216c8681902ccd3ea3d52193de54976e25ea7cfb9d0cbbec77:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^