Colissimo class missing causes fatal errors
Updating the Colissimo module causes a fatal class-not-found error that breaks the order list, settings and checkout.
Tier II · Emerging Problems that are still building up.
4 public reports · first reported 2 February 2026 · last reported 19 February 2026
What's going wrong
After updating a Colissimo shipping plugin, several site owners saw a fatal error stating that a carrier class was not found.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 4 reports are about, and how many came each month.
- Related problems.
No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.