logo keeps on being randomly deleted from media play leaving the wood mart logo

hi, for the past month the Header logo keeps on like deleting itself or something, its the most wackiest shit ive seen in 15 years using wordpress. Woodmart logo just keeps showing up, as much as i like the theme, i do not like this glitch, i have no idea what do to. It will be on for a few days to a week then gone, and Wood mart shines. so.. ussually after some updates or something, but man it was much nicer when you put the uplod logo insde the themes setup area.

please assist, i cant be the only one