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WHMCS add-ons break after WHMCS or PHP upgrades

Add-ons for WHMCS break on newer WHMCS, PHP, or ionCube versions, and vendors leave the incompatibility unfixed.

Tier I · Proven The best-established problems.

10 public reports · first reported 31 December 2018 · last reported 9 July 2025

Idea report · $19 · No contacts · All sales final

See a sample idea report

What's going wrong

Hosting companies using WHMCS email, SMS, and notification add-ons report that these modules stop working or show not-compatible errors after upgrading WHMCS, moving to PHP 8, or updating ionCube.

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 10 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.