Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8c7c88079850684e64805cb30fcd55ccdbe1111a19d18679622c00f884b2bbd1:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^