Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6dc45b2df97cf1bef9d6b6c2ad778e86ec1e3f87f0583da214cfc7147880ddc0:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^