Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e1b8bdf61f1bb38285857c659a53ec104a35af93ab88ccbbe304d2fa165b618a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^