Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e8056dd3a307450d9ce19e050f5f42691c79fcc3af9c735ddfbf17bd5aa9b581:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^