Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 73ed2cbc7d2bdcfb94c34f82ed1c156d0bf1a0cbc2cbac5f5ad5831e320949d0:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^