Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> da47022f13d8715cf740768c958ddfbd38260cf1c6d4aa2db84abeb563c2f986:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^