Dear HM.
Sounds like you need to match the PHP version installed in your live server.
I can fix them all in a few hours.
Thank you and I look forward to the opportunity to work with you.
Jack Zakaria
Relevant Skills and Experience
i think it can be a problem of PHP version, code path and MySQL connection.
I have a lot of experience in Linux OS based Hosting servers ( Godaddy, Hostgator, Bluehost, AWS and DigitalOcean.)
Proposed Milestones
$25 USD - Completion
Can you share screenshots of the issues?