Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> dc374b0c504aaa99556fd72d582d946fe0720fcb00c8ce2c8a48660078f9bcbf:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^