Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 18fe52c167acf565e75b04a4979310d0e0a4fe7f61ab818db85f7b6e8a1ff30c:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^