Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 67d19e5435167f78c5f22c4297a5bab04337521f845e7169c65d4a7c523d33eb:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^