Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 470a296aeba731e20201cf6c68c93ea8ac86334ad9a76cdf2d5cbf1365ebf9c7:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^