Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d2c00a2c543fc21b5efd5952905e57e1f333613b35582999aae9af8facc76c98:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^