Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e1941bab5df9bbcb6099f44b9213057a6220e01f8c49ba4d00b23b70e7280230:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^