Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d5c2f67759d5ca725b0e6c66899d4fa01bcc150230bb914ea67df967ea9cb41c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^