Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0a3197edf31c6f9b6e003ccdba26185f898d5ca1683f5b3a253052f443c68430:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^