migration issues unable to connect to directory

Hi. I have a big problem. I asked hostgator to migrate a site to this domain as I am rebranding. They migrated the site for me, but many pages are broken and I am unable to update plugins, themes, upload any plugins, themes or images. It says unable to connect to directory. I have not heard back from Hostgator in 4 days, soon 5 days. Can I hire one of you guys to help me complete the migration? I desperately need help. Both old site and new site is in a bad state :C
Thank you, Inger