Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f68ef92d7466bf2199ca1c18c2d16b20bacc79aad3d1987db774b136c8b5cfdb:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^