Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1ab8660a12c1b3a3e5db3ef986336e2cbdad546f9bf16891c3fa97ebe7ffc8e3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^