I will fix prestashop php 8 compatibility, module upgrade and composer version errors


About this gig
Stop losing revenue to a broken PrestaShop store while critical errors halt your daily sales.
When servers upgrade to PHP 8 or Composer dependencies clash, your store crashes, throws 500 errors, or hits the White Screen of Death. Every minute your checkout is down, potential customers walk away.
As a dedicated e commerce technical specialist, I provide rapid, surgical backend fixes so your store is back online immediately with zero guesswork.
What I Fix For You:
- PHP 8 Errors: Deprecated functions & migration bugs
- Composer Issues: Version mismatches & autoload fixes
- Module Failures: Payment, shipping & checkout bugs
- Site Crashes: White Screen of Death & 500 errors
- Database Glitches: SQL syntax errors & mismatches
- Hook & Theme Bugs: Broken layout triggers & display errors
- SSL & Redirects: HTTPS issues & broken URL routing
Why Choose My Service:
- Data Safety First: Full store backups before touching code
- Clean Code: Sustainable root cause fixes, no band aids
- Fast Recovery: Rapid response to minimize downtime
- Core Protection: Upgrades executed safely
- Verified Testing: Full error log checks before delivery
Message me your error logs right now, and lets get your store live!
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Martins J
A professional squarespace expert
- FromUnited Kingdom
- Member sinceMay 2026
Languages
English
FAQ
Do you need full access to my PrestaShop back office and server?
Yes, to properly fix PHP 8 compatibility, Composer dependency errors, or database issues, I will securely need access to your PrestaShop admin panel and your server (via FTP/SFTP or cPanel/SSH).
Will fixing my store cause any downtime or data loss?
No. Safety is my top priority. I always take a complete manual backup of your files and database before touching a single line of code or running any updates.
Will my customized theme or core files be affected during module upgrades?
Never. I perform targeted, surgical fixes and module updates following PrestaShop best practices to ensure your core files and custom design remain completely intact.
What should I provide when I place my order?
Please share your error logs (or a screenshot of the error), details about your server's PHP version, and temporary login credentials for your back office and FTP/cPanel.
What if the error comes back after the fix?
Every fix undergoes thorough testing, including checkout verification and error log checks. I ensure the root cause is entirely resolved, not just temporarily patched.

