Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e1a1e3b84f3ed5490ec8f998093be2e30058a29e72cbc85d4e3121aa4dede36c:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^