CODE_ERROR

There is an error in the cadence code of this transaction.

[Error Code: 1101] error caused by: 1 error occurred: * transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed: error: underflow --> be4bfef105c77b71c045bb17539143b0f86d5044a2d99d45aace5ebf3f8b8c48:18:17 | 18 | let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^