Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3373bf3284615bccd9c33a6650b6ad44cfb4359a9a782db6e20d2902c0ca05bb:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^