Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9d5c512beb1c1201745d3f45ad464aec2037d85c374dcc003dd95d042cf7d9ae:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^