Recover and Permanently Repair WordPress Site, Restore Square, and Migrate from GoDaddy

I need an experienced WordPress developer to recover and permanently repair my existing website, which is currently hosted through GoDaddy. The website repeatedly goes down, and I have been told the problem may be related to the WordPress theme. GoDaddy has repeatedly charged me to restore the website, but the repair appears to be temporary, and the site goes down again. I like the current website and do not want it redesigned or rebuilt unless absolutely necessary. I want the existing design, pages, photos, and content preserved. The project must include: • Recovering the existing WordPress website and database • Diagnosing the actual cause of the repeated outages • Repairing the theme, plugins, WordPress installation, PHP compatibility, database, malware, or other issue causing the problem • Preserving the current design and content • Reconnecting my Square payment processing • Restoring my Airbnb and Vrbo links • Creating a full backup before making changes • Moving the website from GoDaddy to affordable, reliable managed WordPress hosting if recommended • Connecting my existing domain to the new hosting • Installing automatic backups and basic security protection • Confirming that the site is stable and functioning properly on desktop and mobile Please provide a fixed total price and explain whether there will be any ongoing monthly maintenance charges. I do not want a temporary one-month repair. I need the underlying issue permanently corrected so the website remains online. Please do not make changes to my domain registration or business email without my written approval.