Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 88869e082e47c665a32e21b6b27f1446a9ebc71ba7c5afd51a52fad2591d2111:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^