Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d8c4109386d09dff070b0e2048b0cb6207a44054e9b202872fbcef471189dcd3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^