Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1ca507b26beb950cf9d93a922524de44247db7c347fec563188cf2a84e154918:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^