Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> cae72dd3bbdb9b2a393e48b9b49ca5cea6275c661eb3bc61e82398ad72a9653b:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^