Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 79b1231b1b5470d47a994be4399b51811bb190b29bc7013e1b14c6fb2256ab30:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^