Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4b4988b6d06f7d7374933a61d9ed85f907d2216cf2453c2a1c2f3fe0b281b0bc:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^