Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 717dfdf9c0b964363826479049f7a275ae8335f8dc94a2174eb0cbcfe20a4985:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^