Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3c003495a0e4d1e50f3523ec0e4f01a11497a2626927de47ef69c97dfcf2ba54:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^