Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0baf7371eeb987efd5f98b43ebf5542752d5bab97aab00709bda8bf1c62197f6:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^