Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a95bc02326335871da11016097caf5776c29a001d8fedb6ba0b423dc5d1cb69d:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^