Caddy

I have raised this question before but probably without sufficient detail. I have a 3Kw Smart Inverter installed in my camper van which is approx 12 months old since being kitted as a van. It appears that the batteries are no longer being charged by the solar panels. I have a MPPT solar regulator which indicates that power is coming from the panels however I appear to have lost something from the LCD display on the inverter. The symbols in the bottom left hand corner that represent the solar panels and MPPT (see attachment) are no longer displayed on my screen. I have looked at the wiring and it appears intact, I have also checked the fuses and all are in order. I am not technical but am learning fast. Has anybody else experienced this and is there a simple fix? inverter display.docx

It is a 3kw sMart inverter and has 2 panels connected. The make is sMart

I have had this inverter for 12 months and now it does not appear to have an input from my solar panels. It is in a van and I may have accidentally caught a button while packing the boot. Any advice would be welcome as I am a total novice. The unit is a SMART inverter.