Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fef52b2dfd9da5abdb176675bb63dd21fb29cfde6c2a5b1f73616ead516defad:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^