Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d272ba3e4f7589948149f197386beba50d734a29efd5e2defa9bcf847abf1b71:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^