Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6f5b6d4654c1f41032cb827222234d61fdc0b56f8a3101148faff76542accbab:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^