Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 870b5216506ac75a83a52482fbc514d12d2178c714cc190f5f5fdbc5ff1ec526:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^