# Issues and troubleshooting

- General troubleshooting
  - Bugs
  - General troubleshooting
  - Troubleshooting Web server and PHP problems
  - Troubleshooting WebDAV
  - Service discovery
  - Troubleshooting contacts & calendar
  - Troubleshooting data-directory
  - Other issues
- Code signing
  - FAQ
  - Fixing invalid code integrity messages
  - Rescans
  - Errors

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