Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3355007e59d997ab9544fa26c346f3a0d1d8aaf01baedc80604c169e435a2ebe:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^