Moto cms site not ranking after previous seo work

I need my website re-configuredMoto cms. ranking issue after previous work. Our website has always ranked places 1-3 on google however a few weeks ago an seo company changed every page title to the same we changed this back to normal and it then returned to nornal ranking, however soom dropped after a few days , i have found if i do a full google crawl in webmaster it does not rank but doing a page at a time they do, bidders must be familiar with moto cms and bid final price that they intend to complete project rather then low price then adding later