Photos don't seem to upload properly to Media Library

im trying to upload a range of photos but there is an upload restriction of 135 by 55 pixels for photos. The photos that i have uploaded don’t seem to appear on the media library or they appear blunk . can someone help? whats going on here.?
I can’t even upload my own main logo because of this

hey there

Im almost sure this is not a theme problem, please activate one of default WordPress theme and check again, if you have the same contact to your hosting support about this,