Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e0788e3bf2638fd6a46e50d0bf4be4f1dbc3680c2f5aad64e301876861540ab4:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^