Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8ce497438889a5f0455e24918da40d996f74da90c4beb297f1e3ede79cda980d:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^