Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d81becc90ec438b744c71f77f7909edf8b9593e61d1f5f4183371158d61f9695:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^