Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 220e481d5fd075e9b540efed36202feab0dfb7d6de3ad283f52fdd961ea61cde:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^