Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b8a2d0d0ef1cddafc1892d8f4f3f58ad90654ed7607ebfd771ce239b3bca5f1c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^