Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 139bad6823c82b0e00929bca8a3f8368ce090c7470b3f2fa64328a02d80f5840:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^