Why is my phone stop vibration

My mobile phone suddenly stop vibration.

Thank you

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

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2947414:01crwdne2947414:0:

I'm assuming you've already checked that you have silent mode off and that you don't have the vibration turned off in settings? If you've done that, try restarting your phone (a full shutdown, not just sleep mode). If the problem persists, let me know.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0