Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e539425147ef8ab2f56aa2c44d63ef93f62f7b5cc47ea728043edb49223a3e9f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^