Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8daa06d42809e36e3255d87e44ba2a2a7c935a2097241d9e9cf97c14cdd639c5:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^