Hi @Mohamed Khaled
What are your SQL server and SSRS versions? You can host a report server database on a different version of SQL Server. In general, you can run a version of SSRS and host the database on a lower version of SQL Server.
For the version of Report Viewer, you can check this link: https://learn.microsoft.com/en-us/sql/reporting-services/application-integration/reportviewer-controls-support?view=sql-server-ver16.
Best regards,
Aniya