Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d037633efeec33a97ded4a5b13b7e4c96905e580530d071067fad2e5fd1de3f5:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^