Decsus

Just be a little bit careful here as the Magneto Evo range of batteries do not combine with other brands such as Pylontech. I bought such a battery to add to my solar system, only to be advised by the supplier that it cannot work with other manufacturers' batteries. They would not take it back and I now have it sitting in my garage. Sad waste of money. but Caveat Emptor as the saying goes.
 

Seems this is if the A an B cables are the wrong way around. Due to trying everything 😕 

Hello Decsus. I have 2x 5kw Sunsynk inverters which was installed a few days ago. I had similar issues with getting the system mode sorted. I haven't checked all your settings, but the following is very important: Make sure the time slots are in chronological order, with time slot 1 the closet time to 00:00. So in your case, put 06:00 to 09:00 in time slot 1 and populate the rest in order. It does not make sense, but it does work. My first time slot was set from 23:00 to 05:00 to charge my batteries from the grid and it just refused. I then made my first time slot 01:00 to 05:00, kept everything else the same and it started working. I suspect it is a bug in the software.

The CT coil is fundamental to the correct operation of the machine, especially if you are not allowed to export power.  I would suggest you get someone to check your installation.  Here is a list of approved installers https://www.sunsynk.org/approved-installers-1

This was un-ticked

That's correct. Untick grid peak shaving and untick BMS Err Stop. 

I think I had the same issue where you change that tick to use timer and go out and back in and the setting doesnt save, I think it was if you have grid charge ticked under the battery settings it wont allow you to untick, something like that 

Having perused your pictures here are some initial notes on your settings:
Picture 10 - If you don't want to export power beyond your utility meter you should tick zero export on picture 10. Picture 11 - What CT coil was supplied to you?  It should be the 50ma / 100A model.  The CT ratio should be set to 2000 and not 200, otherwise the reading will be wrong.  Picture 4 - Did you installer put in an earth bond relay on the load output?  If not they should.  You then need to tick the setting "signal island mode" to ensure it operates. Picture 6 - If you dont have a specific use case for Grid peak shaving, untick that setting. Picture 4 - For safety I would make the equalisation days 0, just in case your inverter tries to equalise your lithium which will damage them.  This setting only for lead acid. Don't forget to click ok after changing any setting to ensure it saves.