Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ad277eb7a0f8d0e2d987501c11d6d5ac169e3dcbf2fffc740dd522e4693418ff:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^