Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 89fb24cbf5f74e13f42b3ea019a72abf1149a74cf7f6de319e35cf76efe1e02d:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^