Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f4b3f867f865f3b296cc02e7d6baef87d0a8f47f56e65224e6c9b8a1beca67fb:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^