Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 43eeabf73da6aec0a5c1ff37a4a3119d7894167d3f2bfce9a8824a76e24e990c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^