UTR Library Designer Error

Template 5'-UTR Sequence (25NT) : NNNNNNNNNNAAACAGAGGAATAAGA ( Length should be 25NT ) ,     Additional Constraints for designing 5'-UTR sequence (25NT) : NNNNNNNNNNNNNNNNNNNNNNNNN

Protein Coding Sequence (at least N-term 35NT) : ATGTCAAAAGTCGCTCTCAT CACCGGTGTAACCGGACAAGACGGTTCTTACCT

16s rRNA Sequence : ACCUCCUUA

Desired Expression Range : 150000.00 ~ 1000000.00

Number of expression-level intermediates : 32