Mike Gunnill wrote:
It seems Sandvox has walked away from its customers and from 13.1 Ventura I can't access my own web pages using their software.
Does anyone have a solution, how I can regain control of my own/edit web site?
Grateful for a solution please?
Your third party appears to be a WYSIWYG site builder. It has it limits.
If in doubt—http://www.karelia.com/support/
There are many WYSIWYG options—https://www.guru99.com/best-wysiwyg-html-editor.html
If you are locked into Sandvox servers it could be an issue.
You can typically spot a https://wordpress.org/ web site a mile away...not a fan.
I have seen some site builders better than others, ex:
Squarespace
WIX
All you need to manage/build a web site is a FTP client and a Texteditor, along with development & design skills.
There are many, many options here.
Personally I have always used Fetch and BBedit for decades
https://fetchsoftworks.com/
https://www.barebones.com/products/bbedit/