Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> eea1f7c3d6e9e263ec3753f750a1f1ce8c5794af5612fcaf487163f30ae8aef2:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^