Traceback (most recent call last):
  File "/home/ubuntu/miniconda3/bin/rna_pdb_toolsx.py", line 7, in <module>
    exec(compile(f.read(), __file__, 'exec'))
  File "/home/ubuntu/rna-tools/rna_tools/rna_pdb_toolsx.py", line 466, in <module>
    remarks = s.get_rnapuzzle_ready(args.renumber_residues, fix_missing_atoms=fix_missing_atom,
  File "/home/ubuntu/rna-tools/rna_tools/rna_tools_lib.py", line 1325, in get_rnapuzzle_ready
    r_atoms = [r["C3'"], r["C2'"], r["C1'"]]
  File "/home/ubuntu/.local/lib/python3.8/site-packages/Bio/PDB/Entity.py", line 45, in __getitem__
    return self.child_dict[id]
KeyError: "C2'"
DONE!