since the update if i create a world backup, when i try to upload back up to the server i get port error messages :
04.09 10:19:05 [Server] INFO IPv6 supported, port: 0
04.09 10:19:05 [Server] INFO IPv4 supported, port: 0
04.09 10:19:05 [Server] ERROR Network port occupied, can't start server.
a quick fix is to upload to and open in offline world then use that on the server.
but still more time consuming. so needs fixing
I'm afraid we cannot help you with issue on Windows Phone. This platform is no longer supported, see https://www.minecraft.net/en-us/article/important-news-regarding-minecraft-mobile