Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 969d84852eec476a3bf0286a617a0e7e1105cf7855ad389c1849eda46799767b:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^