Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f6799dd5711fd7df331cb73b9255625bb97671128e6f1ca9a0662712f60d1e6f:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^