Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8d0a7f711909f05fe7f43ebc0f7e192b219640e27d8058fe26378a3b40fe1268:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^