Your PrestaShop store is down.Every hour costs you orders.
500 error, blank page, inaccessible back office, blocked payments, hacking: a developer agency based in France, avec 15 years of e-commerce experience, takes back control of your website today. 90 €/h, estimate before taking action.
- 0 ans
- e-commerce experience
- 0 €/h
- price shown, no surprises
- 0 h/j
- availability, 7 days a week

PrestaShop
Shopify
WooCommerce
Adobe Commerce
BigCommerce
Wix
Squarespace
Drupal
Sylius
OpenCartStripe
PayPal
Klarna
Alma
PayPlug
Lydia
MiraklLengow
Sendcloud
Mondial Relay
Colissimo
- Google Ads
- Meta Ads
- Google Analytics
Klaviyo
Mailchimp
Trustpilot
Avis Vérifiés
OVHcloud
Scaleway
- Cloudflare
- PHP
- MySQL
Symfony
PrestaShop
Shopify
WooCommerce
Adobe Commerce
BigCommerce
Wix
Squarespace
Drupal
Sylius
OpenCartStripe
PayPal
Klarna
Alma
PayPlug
Lydia
MiraklLengow
Sendcloud
Mondial Relay
Colissimo
- Google Ads
- Meta Ads
- Google Analytics
Klaviyo
Mailchimp
Trustpilot
Avis Vérifiés
OVHcloud
Scaleway
- Cloudflare
- PHP
- MySQL
Symfony
We fix what's blocking your sales
The most common PrestaShop issues—the ones that stop revenue in seconds. We’ve fixed each of them dozens of times.
500 error & blank page
Website completely down, blank screen, fatal PHP error after an update or module installation. We isolate the cause and get it back online.
Payments & orders blocked
The checkout crashes, orders can no longer be completed, and Stripe or PayPal payments fail. The most costly outage: handled as an absolute priority.
Back office inaccessible
Can't log in, login page stuck in a loop, broken permissions. We restore access without losing your data.
Theme or module crashing
Broken display, module conflicts, messy overrides. We fix it properly, without breaking the rest of your store.
Hacking & code injection
Malicious redirects, infected files, store blacklisted by Google. Website clean-up, security and hardening.
Slowdowns & failed migration
Slow pages, a failed version upgrade, an overloaded database. We stabilise your store, then optimise it for lasting performance.
Urgency isn't a marketing claim, it's arithmetic
A down store keeps costing you money: wasted paid traffic, abandoned carts, lower search rankings, customers switching to competitors.
Beyond emergencies: your day-to-day e-commerce agency
We don't just fix things. We build, scale and manage online stores — including our own.
We also work extensively on Shopify — useful when the question “stay on PrestaShop or migrate?” really comes up.

Who works on your store
Presta Debug is a developers based in France, with more than 15 years of experience in e-commerce and PrestaShop. No freelance platforms, no outsourcing to the other side of the world: the same people diagnose the issue, fix it and explain what happened.
The key difference: we run our own online stores. When your checkout goes down, we know exactly what that means — because it happens to us too.
- Developers in France
- Merchants ourselves
- 13 hours/day, 7 days/week
Four steps, zero nasty surprises
The process is always the same, whether it’s a critical outage or a development project.
- 01
You call
Phone or WhatsApp. We assess the issue within minutes.
- 02
Diagnostic
Analysis of logs, database and code. Free, no obligation.
- 03
Cost estimate
Estimated time provided and approved by you before any work begins.
- 04
Fix & report
Back online, checked and with a clear explanation of the cause.
Every hour of downtime costs you orders
A French developer will look at your store today. Estimate before we start, billed only for the actual time spent.
Frequently asked questions
The answers we give most often over the phone.
How quickly can you respond?
The same day in the vast majority of cases, between 9 am and 10 pm, 7 days a week. We assess the issue by phone or WhatsApp, then open the case immediately if it is blocking your business.
How much does PrestaShop troubleshooting cost?
90 € de l'heure, facturés au temps réellement passé. Le diagnostic et l'estimation sont gratuits : vous savez ce que ça coûte avant qu'on touche à votre boutique.
Which versions of PrestaShop do you work with?
From 1.6 to 9, including highly customised stores, custom-built themes and modules developed by other providers.
Do you provide support throughout France?
Yes, 100% remotely, throughout France and French-speaking Europe. We work using your FTP/SSH access, back office and hosting provider.
What if the problem is caused by my hosting provider?
We identify the exact cause and deal directly with your hosting provider's support team on your behalf. You don't have to act as a technical go-between.
Do you also offer website creation and development?
Yes: custom PrestaShop modules, store development, redesigns, performance optimization, full website management, and Google Ads and Meta Ads campaigns.