Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c3bfe12bb1bdbe06ff847f98b60340c32858d45b0704ed399bdcd8fecda06c65:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^