Microsoft SharePoint

I want to migrate files from Microsoft SharePoint Server to Azure Blob Storage using PowerShell. It seems I got a lot of files not found problems and connection/permission issues. I tried to fetch files from SharePoint Server but turns out to be not working.

Since I don't have the knowledge to evaluate this choice correctly, and since it is fundamental to the success of the project, I wanted to know the community's opinion on the matter.

Thank you :)

Currently, we are using WordPress in the organisation to deliver content externally to clients via a portal. However, we have installed way too many plugins for our liking, and they are starting to conflict with one another. Also, there were issues around scalability in the way we initially designed it. A few people in the organisation are leaning toward a Microsoft SharePoint solution using Livetiles, but we've been told it is mainly geared towards internal/intranet solutions as opposed to external solutions (which we provide). I was wondering if anyone has some high-level thoughts to share in regards to moving to a Microsoft Sharepoint environment vs. a more flexible solution like Umbraco.