Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> dcf60944e514fb8fef45ca95bc9be02691ec9eb4e3a96bda5962a89fbe8ecab5:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^