Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c0a65201b569f6a2cd52b0c8a76021de487dd6ab0b95b0ce40a1cd1ffb5aaef2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^