I miss currency symbol in my system

i need ur help for get a currency symbol, i miss my all data because of system currpt but i got some back up of my data so i reinstall all data in system at that in manager software some item is missing like symbol & other entrys like advance payment to party but it no so in supplier credits.

Your currency symbol is selected under Settings > Base Currency. Your problem with advance payments may be explained by a change made a month ago: [16.7.73] Categorization against customer and supplier accounts more intuitive. I suspect you updated software without knowing about this change and got confused.