Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 420123d8cf577a5e3868d3b482903ce109c7c32b195a053020f02826c1c656ce:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^