Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c6e55e43d173a7c7e3e19a2af0981e5368a8d5b5f8534e9d1d3e96447a2404b3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^