Solaredge Multibus has stopped working

[MajesticMET]

Hi I am after some direction on where to look for a solution to my problem. I have Solaredge-modbus-multi installed and it "used to run and provide all the data but now the data show as "unavailable".

If I reboot "Home Assistant Green" then data "will normally" reappear for about 60sec and then back to "unavailable" and with the last HA update the data worked for a couple of says, but now back to unavailable!

Occasionally I will get a notification that there is an error and to re input the IP and other information .. I check the info and re input but this makes no difference.

Can anyone direct me to where I should start fault finding??