Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ce268af2269ab50d53b0486702f9b3458b5a0e033076a86bc1425f3b97e6cca2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^