Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 16684f24abc45eddc2cad98d481487722921f42b3f50ae35fe1893a9be9e6886:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^