Why I keep losing storage space

I have an external SD card but it won't let me put anything on it,I even tried a new card it keeps saying storage space running out. I can't update or download

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0