Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8c960e1d909eb8431f94778ed601d25dfd400b7ac1d5832094ce0f1d62215ebf:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^