Cause: Your login session has timed out. Fix: Log out and log back in. If the issue persists, clear your browser cookies.
Cause: Too many requests in a short period. Fix: Wait 60 seconds and try again. If you need higher limits, upgrade your plan.
Cause: Your account doesn't have access to this resource. Fix: Contact your admin to request the appropriate role/permissions.
Cause: The uploaded file exceeds the 10MB limit. Fix: Compress the file or use a supported file-sharing service.
Cause: Connection issues between your browser and our servers. Fix: Check your internet connection, disable VPN if active, and try again.
If none of these solutions work, create a support ticket with the exact error message and steps to reproduce.