Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d3608f9d4c7f73e43436e3249828a1cb2b2dbb91345df52901d95bbed6b7aeab:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^