Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b2d917f2987d5b7b6face1aeac5741d2474d28c6d811ec183f550b08b2dc3adc:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^