Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1bedb79e60cf56ce0aad9805e30812eaab6779917d540c22f9e09f1dca532757:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^