Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 987ce6a966498c83d8aee44008cb8f9af2fbefb30845d1cbd1b4058f57350104:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^