Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 464e88967b9fc5f4faba0e39625819deba33594da4b7ba3d18c43be59bb078ea:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^