it seems the file is missing 2 documents.
1. LCA. LCA is not the screenshot you got from BEC. BEC screenshot shows you are eligible for extension beyond 6 year max. no matter beyond 6 yr or not, you need an LCA. Do a PWD with your state dol first. then go to http://www.lca.doleta.gov to do an lca.
2. H1B data collection supplement. This is the last part of form 129. complete the main part (4 pages), H supplement, and this data collection supplement.