Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1bff8121f95498622383e7f78c0b199fd408e9ccddafa82ec29c4f5bb7421a75:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^