Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 91789bfb455d21f0d61a7b2a58355da5d31117d8122fc7335cb1baf56f1bd086:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^