Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f57a95f76c62dd2c018bcc12afeeb4bb8c7b3ad237a5a945d500e0321361aa19:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^