Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fd18661d021e2025f21169e1b2eaaa057e82dde643864ff07bf90529f71681a7:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^