Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e3ce50b62e392dec77bbefae97ed6f7b4460996fa1c7ef7ce970b71de2ee99db:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^