Line 177 RequestException crashes pages
Server-side event sends throw an uncaught RequestException at line 177 that crashes frontend pages, admin screens or the whole site.
Tier I · Proven The best-established problems.
10 public reports · first reported 28 October 2025 · last reported 12 May 2026
What's going wrong
Site owners using the Meta pixel plugin report a recurring fatal error from the Facebook business SDK. When the plugin sends a server-side conversion event, an uncaught request exception is thrown at line 177 of the request class. Visitors see critical error screens, admin pages stop loading, and some sites go fully down after an update. Owners of small shops and agencies managing several client sites are hit hardest, and they often cannot find the cause without a developer. The problem is easy to see but hard to diagnose, which creates an opening for a safety wrapper and clear error reporting for WordPress sites.
AI-assisted: written with the help of AI from the reports.
Products affected
Meta pixel for WordPress.
Related problems
Who has this problem
2 businesses found.
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