Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a372017e95c167541b347bdd1a0422fce234f76cc3ca8115dd9b252bb966878c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^