Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 588fc54f18d04840f329c3ff0d54eb5fd14ad6bcf487d6cc82977da30409a3c1:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^