Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fb18665d333c43cb247f6c3113e5b54c50832b27290818f9d20f70f6e1bd66a2:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^