Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f91c3e6ef35cc534a50a8bea4b227f468d2eee1bf7db7a50eb44bd997d916db4:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^