Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a1c2f12e3abd1107e30ef003a0aba7fe6f93e9d065b894dddd982545b0faf2b8:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^