Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 91a9d9820c0ff75660c783ede01f85f12e13315e6ce38022dd54eb38704e7e8d:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^