Bug Report from Crash Log

Analyze this crash log and write a bug report.

CRASH LOG:
[Paste the crash log / stack trace]

CONTEXT:
- Platform: [iOS / Android]
- Device: [Model]
- OS: [Version]
- App version: [Version]
- What the user was doing: [If known]

Please:
1. Identify the likely cause of the crash from the stack trace
2. Determine the crash location (file, method, line if available)
3. Classify the crash type (null pointer, index out of bounds, memory, threading, etc.)
4. Write a complete bug report with:
   - Clear title
   - Severity (crashes are usually P1 or P0)
   - Root cause analysis
   - Suggested reproduction steps
   - Affected scope (who is impacted, how often)
5. Suggest potential fix direction (for developer context)