Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b2a6bd0086de7a8039b74d831a8f14378e15cb856f2c1431fc6ea3679af60fc9:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^