Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b2b4e02551302df2321284e72697765a9055d67f6d29e50afd3eb80b4db99b29:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^