Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 61e20f7dcce4fe772300862cd697d7d99a03af3a77def3204f74f6f80b7ff076:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^