Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 80cd8cb4f180a5fa0e9559c8fb9d74dc7c42a6913a1d71fe7b4f238ec463c0c9:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^