Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 846873d7e82b7da9ffdc67f88311bfa28a6a056dabec0c3f1361d9318cf153ef:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^