Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c9b6812597e2347141b1088f9a9d839feaea12163a249b2144c058f515a504fb:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^