Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> edbc5ca16ae2809f6b1a06a77b5982e64759a65cbdceddb2c8fa143474df2ecc:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^