This is a Welsh Solo database where the Welsh clubs Swansea, Cardiff, Newport, and Wrexham have been moved from the English Leagues to the Welsh Premier League.
I have tested this by siming through the first season and havent encountered any issues however as I used the wales solo data base there are some players missing from the 4 squads.
Download and Extract the Zip file
Copy the walessolo folder and paste it in to databases folder within Android/data/com.sigames.fmm2017/files/installed
Please ensure that you back up your existing walessolo folder before installing this so you can regress back to it if needed.