Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 81949ec04ffb7ce3a66b683369f0a2458f79aa7b62b7ab0dc44104cc2bb3c033:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^