Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 225f33f512f722d18356be6e352f9dbd25717d217ba062b40d89c2ebfb3d4c0a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^