Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 77be8fd43b15ec6e84cdb05d3e5f23e1b7c0f7903c79ec56f617d566feefb836:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^