Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a7c2eb068f28b01ea7739cfae46a9492aa36d7f36d5ce29200d87e1fa0104035:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^