Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3ccf6fa0df840b8680de089645cfdece4c0fe4cf5376c9a7de147c62d24f2acc:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^