Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1dfbb8a5b4fd9d94ffbc1dfb29400604cd5fa0d961fdae2d419e5ff26e4bc64d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^