99999
Easy Fix
YouTube · Streaming
Unexpected YouTube application error from malformed session or data state.
Quick Answer
Error code 99999 on your YouTube Streaming means: Unexpected YouTube application error from malformed session or data state.. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Force close YouTube and reopen it.
2
Clear app data/cache.
3
Restart device and reconnect network.
4
Update or reinstall YouTube.
5
Retry with a different account to isolate account-level issue.
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
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