Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9cbd2cea247d79147130094e21adde792e0809a1e11225ffcd0cc5c34e454b7e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^