Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2bd0ac55987a544a17c8d61fdb27c9b593f9259e96fc45d1de37293727257bc4:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^