I am late for the train, hope it is not too late.
What This (Debug Log File)?
GUI: libpng warning: iCCP: known incorrect sRGB profile
GUI: libpng warning: iCCP: known incorrect sRGB profile
GUI: libpng warning: iCCP: known incorrect sRGB profile
GUI: libpng warning: iCCP: known incorrect sRGB profile
It just means that some of the PNG files used are in the old sRGB profile...it can be ignored