Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b1f5a47b724cfccde6e50e2cc0f5c1d1766b5076830cc08329a72437d1fb8cda:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^