Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> bc6d1c1acfd494a23ac0eaf81a7d12e752b1f1aae2591a5a879ef6d8c9f10767:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^