Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1339e1a9eeca7f135268efb3f2081a518a09da7c10e3ec21cc6fa396781cfe7a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^