Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a3305564d52e19fce0ccc6387360f85a79a65dceca5ac5b70c14a0285caa7adf:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^