> For the complete documentation index, see [llms.txt](https://helpcenter.xopero.com/xopero-one-en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://helpcenter.xopero.com/xopero-one-en/common-issues.md).

# COMMON ISSUES

- [General](https://helpcenter.xopero.com/xopero-one-en/common-issues/general.md)
- [Encryption option in backup plan is disabled](https://helpcenter.xopero.com/xopero-one-en/common-issues/general/encryption-option-in-backup-plan-is-disabled.md)
- [Xopero ONE web panel is blank upon login](https://helpcenter.xopero.com/xopero-one-en/common-issues/general/xopero-one-web-panel-is-blank-upon-login.md)
- [Workstations and servers](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers.md): This article describes the common issues related to workstations and servers.
- [Agent installation on Windows Server 2008 R2 ends prematurely because of an error](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/agent-installation-on-windows-server-2008-r2-ends-prematurely-because-of-an-error.md)
- [Agent not visible in XMS after successful installation (Linux)](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/agent-not-visible-in-xms-after-successful-installation-linux.md)
- [Backup ends with a DW1010 warning](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/backup-ends-with-a-dw1010-warning.md)
- [Backup finishes with a "DV0140: Unable to query string" error](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/backup-finishes-with-a-dv0140-unable-to-query-string-error.md)
- [Backup task ends with a "DV0270: User-defined script failed" error](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/backup-task-ends-with-a-dv0270-user-defined-script-failed-error.md): In this article, you will learn how to add the MySQL dump utility to the path variable. This is necessary for define arguments for the MySQL database backup script installed on Linux.
- [Cannot delete device in Management Service](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/cannot-delete-device-in-management-service.md)
- [Database backup ends with a "DV0249 - Unable to read backup data" error](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/database-backup-ends-with-a-dv0249-unable-to-read-backup-data-error.md)
- [Device did not connect to the Management Service](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/device-did-not-connect-to-the-management-service.md)
- [Disk image backup task ends with an error](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/disk-image-backup-task-ends-with-an-error.md): LOREM IPSUM.
- [File-level backup did not protect all the selected files](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/file-level-backup-did-not-protect-all-the-selected-files.md)
- [Installed device does not appear in XMS](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/installed-device-does-not-appear-in-xms.md)
- [Microsoft SQL Server database backup ends with "DV0270:User-defined script failed" error](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/microsoft-sql-server-database-backup-ends-with-dv0270-user-defined-script-failed-error.md)
- ["Storage Initialization failed" error](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/storage-initialization-failed-error.md)
- ["The VSS Diff failed" error](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/the-vss-diff-failed-error.md)
- ["Unable to open store read" error](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/unable-to-open-store-read-error.md)
- [Virtual machines](https://helpcenter.xopero.com/xopero-one-en/common-issues/virtual-machines.md)
- [VMware](https://helpcenter.xopero.com/xopero-one-en/common-issues/virtual-machines/vmware.md)
- [VMware backup is missing some files](https://helpcenter.xopero.com/xopero-one-en/common-issues/virtual-machines/vmware/vmware-backup-is-missing-some-files.md)
- [Hyper-V](https://helpcenter.xopero.com/xopero-one-en/common-issues/virtual-machines/hyper-v.md): Hyper-V related issues.
- [Backup ends with "DW9700 - Creation of Application consistent snapshot failed" error](https://helpcenter.xopero.com/xopero-one-en/common-issues/virtual-machines/hyper-v/backup-ends-with-dw9700-creation-of-application-consistent-snapshot-failed-error.md)
- [Hyper-V environment is not visible in XMS despite installing the agent on the host](https://helpcenter.xopero.com/xopero-one-en/common-issues/virtual-machines/hyper-v/hyper-v-environment-is-not-visible-in-xms-despite-installing-the-agent-on-the-host.md)
- [Residual Hyper-V checkpoints remaining after differential disk merge](https://helpcenter.xopero.com/xopero-one-en/common-issues/virtual-machines/hyper-v/residual-hyper-v-checkpoints-remaining-after-differential-disk-merge.md)
- [Unable to assign a license to a Hyper-V host](https://helpcenter.xopero.com/xopero-one-en/common-issues/virtual-machines/hyper-v/unable-to-assign-a-license-to-a-hyper-v-host.md)
- [Unable to backup a Hyper-V cluster](https://helpcenter.xopero.com/xopero-one-en/common-issues/virtual-machines/hyper-v/unable-to-backup-a-hyper-v-cluster.md)
- [Microsoft 365](https://helpcenter.xopero.com/xopero-one-en/common-issues/microsoft-365.md)
- [OST files are not included in backup](https://helpcenter.xopero.com/xopero-one-en/common-issues/microsoft-365/ost-files-are-not-included-in-backup.md)