Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 771765505e96af5b8b5eb1d1749013046cf539e4f2c35ad9f0b3ed99c63f4303:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^