phone giving the same error message all over again.

Its always saying "unfortunately, anroid.sync.manager has stopped" and when I click ok still repeating this error message all over again. How do I fix this?

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

crwdns2934109:0crwdne2934109:0

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