Errors in log file related to eventing application deleted some time back

Build 5.1.0-1376
Observed few errors in eventing.log file related to eventing application(has some timers) I deleted some time back(~30mins).
Errors(t2 was eventing application):
2017-11-08T09:56:43.654+00:00 [Error] SSUP[1] app: t2 No running producer instance found
2017-11-08T09:56:43.654+00:00 [Error] UTIL Failed to unmarshal timer host port addrs from url: http://10.112.150.104:8096/getTimerHostPortAddrs?name=t2, err: unexpected end of JSON input
2017-11-08T09:56:43.654+00:00 [Error] CRCO[t2:worker_t2_2:/tmp/worker_t2_2.sock:26012] Failed to grab aggregate timer host port addrs, err: unexpected end of JSON input

Attached log file.