Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2e7e5cd1691874c860e48a15b9d595fd8784aab55ea6261f66a48ab03d2c98aa:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^