Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1ffb088d2745e351364769d32497f586f29ff77e306443bb41c4fb0b28a2a88d:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^