Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8d2fea59562bea088a8c6951ca95febabf1e611400d23e59f36ce85d1fedf8fd:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^