Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 90380dcf63f133e263e89fbbafa3bd26df9ec88d4c62d0f7ad8cc2da0700696c:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^