Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8c34855db9fe8db1e1a492a4578fba5ad4fe004aeab0236b38fbf6bcc49cdfab:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^