Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ba70eb795132c715e839dc8a7473a28a971dce5e328bee921f4ee5d5965f4816:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^