Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8e933bafdbfc5f199e55d46f058f06d57216f6bd24ce6230a9dec4cad34e3894:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^