Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d577a1fe1676fe2923b687221b71e9258d3aea7a26e9ce3f91fb447c41307a90:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^