Plugin updates trigger fatal errors that crash sites
Installing or updating the plugin triggers PHP fatal errors and undefined constant errors that crash entire WordPress sites until it is deactivated.
Tier I · Proven The best-established problems.
6 public reports · first reported 17 May 2022 · last reported 31 March 2025
What's going wrong
Several site owners report that updating Smart Popup by Supsystic caused fatal PHP errors, such as undefined constants or null values passed to count, that took entire websites offline.
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 6 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.