Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> de8ca63eca489903bb9072ceb899391a5c10934bd921e98ff69573cafe3150f4:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^