Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ec4833cd403c62e0f3986d80c4404d53ccb365f73c7133b767fbb65c0441f0cd:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^