Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9a319d4a2418787a324f72fcb1420e21dbb8323ea6b6d8ca98ff74c6106c9c67:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^