Hi @NAVAS SHEREEF
Per my research, this case is more related to DotNetNuke, you could ask help in this forum for DotNetNuke.
What's more, here is a similar case. Hope it could help you.
https://social.msdn.microsoft.com/Forums/office/en-US/e58c5d60-030c-4fa3-8d19-e2622d9674e2/dot-net-nuke-to-sharepoint-cms-migration?forum=sharepointdevelopment
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