Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f426c5f7d4efdce5b7860f0da4843fba5b4a4c891ff147c1dd20937012b8d47f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^