Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a8244325dfb441054d314658f4fcb45163ad98378782ecedc79541a037049d0c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^