Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 56b5cd459f76193a6b1684241db7b421afeb150b17745fec5e52b956562b1b80:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^