Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a066690672944850de143a9c315be83a1cf1e6a9c468c80987d1b8a5342212b7:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^