Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c7e951366e67f833282b7264a97af36e148b1e73a4ce40577e2acec221aeaeac:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^