Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fa4e61049c022e0a88b61847cbe54885f55b43ddd22d625a223292652c2c8d9f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^