Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c8faf2c14aeaa656559b2e58ea56fea84bb92ef7c3f507d6f3c069996c469a11:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^