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Troubleshooting · Page 2 of 2

Fixes for common AI errors: what 429, 403, and 500 responses mean, rate limit and quota errors, login and verification problems, and steps that have been checked to work.
  • 33 articles
  • Updated Oct 10, 2026
A document branches into ChatGPT, the OpenAI API, and Azure or connectors to identify the rejecting upload surface.

OpenAI "File Type Not Supported"? Fix the "Try Again With a PDF" Error

If OpenAI says your file type is not supported and tells you to try again with a PDF, the useful first move is to identify the rejecting surface. Current official OpenAI docs are not blanket PDF-only, but some lagging Azure or connector paths still behave that way.

10 min
Is Grok down guide showing status check, surface switching, and local troubleshooting

Is Grok Down? What "Grok Is Experiencing Issues" Means and What to Do (2026)

If you are seeing "Grok is experiencing issues" or "Grok is Temporarily Unavailable," start with xAI's official status pages. As of the latest official check on March 28, 2026, Grok Web, X, iOS, and Android all showed fully operational, but recent incidents prove real outages do happen. This guide shows how to tell a global outage from a single-surface problem or a local browser and app issue.

15 min
Nano Banana 2 Not Working - Complete Fix Guide 2026

Nano Banana 2 Not Working? 7 Fixes That Actually Work (2026)

Nano Banana 2 (gemini-3.1-flash-image-preview) fails for a handful of predictable reasons. This guide identifies which error you have — 429 quota exhaustion, IMAGE_SAFETY content filtering, server overload, or API parameter mistakes — and gives you the exact fix steps for both Gemini app users and API developers.

22 min