Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 20ca0121594d753f219008f05cef4bd9e41a52e17b6f0845cf6c1dc4e8e58862:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^