Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5b146a76359ea8f28a48bf7b73607b7214c3089edbe0a80c06151d09b9573d5e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^