Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ad43f383b25065aea7a95cc976b89922098736a1d57a794be08c54bdef10767b:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^