Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5acc6f9aaa530a1ab1df9a7f4663690ed8761f550c8915e665cc1d7473785da3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^