Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 168a7a5d8da7629a76269ba1341c113310f4e29a1c8672915031b71638dfd264:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^