Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d699aca7eacc40250124bfb1cb79840e13e80f420d37707840ab5cdfaa0b2ddf:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^