Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4c3b88bea614b37ecae82d5816c4f9d996f777e6c0d7fd3791d08bf76ced0e60:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^