Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4cd5bdf7e4774e6e832ca7b654190f43926cc9a14b09064151a5fb0536482613:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^