Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6c5f0e63d0a18f0c2f5ce13e0db26e98e26c1e4066497b6558558aec55c4042d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^