Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 81828884c00226a705767b1fc47becf0731956d11415591aa8cf5ca0393ce93b:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^