Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a78201332f07ad62e2738aeac50e43f018e20b15d189817a65757030b96cc9e2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^