Throw JedisDataException when enqueue a job

Some time, i got this error when enqueue job. After few minus, everything will back to normal, job can enqueue agian, I don't now where to start to debug this job, plz help

redis.clients.jedis.exceptions.JedisDataException: WRONGTYPE Operation against a key holding the wrong kind of value
5 at redis.clients.jedis.Protocol.processError(Protocol.java:127) ~[delivery-2.0.jar:?]
6 at redis.clients.jedis.Protocol.process(Protocol.java:161) ~[delivery-2.0.jar:?]
7 at redis.clients.jedis.Protocol.read(Protocol.java:215) ~[delivery-2.0.jar:?]
8 at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:340) ~[delivery-2.0.jar:?]
9 at redis.clients.jedis.Connection.getIntegerReply(Connection.java:265) ~[delivery-2.0.jar:?]
10 at redis.clients.jedis.Jedis.rpush(Jedis.java:865) ~[delivery-2.0.jar:?]
11 at net.greghaines.jesque.client.AbstractClient.doEnqueue(AbstractClient.java:178) ~[delivery-2.0.jar:?]
12 at net.greghaines.jesque.client.ClientPoolImpl$1.doWork(ClientPoolImpl.java:62) ~[delivery-2.0.jar:?]
13 at net.greghaines.jesque.client.ClientPoolImpl$1.doWork(ClientPoolImpl.java:56) ~[delivery-2.0.jar:?]
14 at net.greghaines.jesque.utils.PoolUtils.doWorkInPool(PoolUtils.java:52) ~[delivery-2.0.jar:?]
15 at net.greghaines.jesque.client.ClientPoolImpl.doEnqueue(ClientPoolImpl.java:56) ~[delivery-2.0.jar:?]
16 at net.greghaines.jesque.client.AbstractClient.enqueue(AbstractClient.java:77) ~[delivery-2.0.jar:?]

Start with the stack-trace entry points in net.greghaines.jesque.client.AbstractClient.doEnqueue and Jedis.rpush, then inspect how the enqueue key is selected and used. Reproduce the WRONGTYPE failure if possible and identify the cause and expected enqueue behavior before determining what should be changed.