SD acts weird + shutter error

So, if i put SD card in it it usually works but sometimes it says it cant read it. if i try to take a picture it says lens error press shutter button again, and if i remove the sd card and put it back in it just wont read it at all until i remove the camera's battery and put it back in, also after i take a picture the images show up as (the best way to describe it is corrupted) with a red x over them but they disappear after the battery is removed and put back in the shutter sounds and looks fine and the sensor appears to be clean and unblemished, also LV mode wont turn on, ive tried several SD cards and resetting all the settings, im not sure if its a bad sd slot bad shutter both or neither, i cant find any info online.