crwdns2933897:0crwdne2933897:0

Why do I keep getting Error codes?

I keep getting err 01 & err 60. Error 01 I did the fix of trying to wipe the connect points of the lens and no fix. I then switched my lens to another and it gave me the error 60 message stating error in taking photos to take out the battery. Any idea why I keep getting these errors?

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

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 1
crwdns2934285:0crwdne2934285:0