Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fcb6937d8706edc38d79a9f0db2e3af1d24706f27b3a2a9b002e3aeb86848606:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^