Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0f6abc6e2ec9e93f44858acb8894e24c5ff62c8fc442b06da34e211beaa67b40:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^