Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c18b959b47a4c2c0472fc4ac558e8be23370cef9e7a1bc8f7d630502bb37c88d:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^