Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6b338d54135db90590e2a481d88004b5c5d70ed2db9001909f223c0dbb09ba2d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^