Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6cfea1207c880bec8f4b7b2b45d287a9596ab2ca128776bf97e68fd5e2edbed2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^