diff --git a/cluster/error.go b/cluster/error.go
index a927b13ac..d992440ea 100644
--- a/cluster/error.go
+++ b/cluster/error.go
@@ -80,8 +80,8 @@ var clusterError = map[string]string{
 	"ERR00068": "Arbitration looser",
 	"ERR00069": "ProxySQL could not set %s as reader (%s) different state OFFLINE_HARD",
 	"ERR00070": "ProxySQL could not set %s as reader (%s) different state ONLINE",
-	"ERR00071": "ProxySQL could not set discoverd master %s as writer (%s)",
-	"ERR00072": "ProxySQL could not set discoverd slave %s as reader (%s)",
+	"ERR00071": "ProxySQL %s could not set discoverd master %s as writer (%s)",
+	"ERR00072": "ProxySQL %s could not set discoverd slave %s as reader (%s)",
 	"ERR00073": "Could not get events on server %s",
 	"ERR00074": "Prefered server %s not found in configured server list",
 	"ERR00075": "Can't fecth Processlist %s",
diff --git a/cluster/prx_janitor.go b/cluster/prx_janitor.go
index 1b035701e..2ebfd14b2 100644
--- a/cluster/prx_janitor.go
+++ b/cluster/prx_janitor.go
@@ -237,8 +237,11 @@ func (proxy *ProxyJanitor) Refresh() error {
 				if s.GetPrevState() == stateUnconn || s.GetPrevState() == stateFailed || (len(proxy.BackendsWrite) == 0 || !isFoundBackendWrite) {
 					// if the proxy comes back from a previously failed or standalone state, reintroduce it in
 					// the appropriate HostGroup
-
-					cluster.StateMachine.AddState("ERR00071", state.State{ErrType: "WARNING", ErrDesc: fmt.Sprintf(clusterError["ERR00071"], err, s.GetURL()), ErrFrom: "PRX", ServerUrl: proxy.Name})
+					errstr := ""
+					if err != nil {
+						errstr = err.Error()
+					}
+					cluster.StateMachine.AddState("ERR00071", state.State{ErrType: "WARNING", ErrDesc: fmt.Sprintf(clusterError["ERR00071"], proxy.Name, s.GetURL(), errstr), ErrFrom: "PRX", ServerUrl: proxy.Name})
 					if psql.ExistAsWriterOrOffline(misc.Unbracket(s.GetHost()), strconv.Itoa(s.GetWritePort())) {
 						err = psql.SetOnline(misc.Unbracket(s.GetHost()), strconv.Itoa(s.GetWritePort()))
 						if err != nil {
diff --git a/cluster/prx_proxysql.go b/cluster/prx_proxysql.go
index 60ec11dc6..7e37b9b3d 100644
--- a/cluster/prx_proxysql.go
+++ b/cluster/prx_proxysql.go
@@ -364,8 +364,11 @@ func (proxy *ProxySQLProxy) Refresh() error {
 			} else if s.IsLeader() && (s.PrevState == stateUnconn || s.PrevState == stateFailed || (len(proxy.BackendsWrite) == 0 || !isFoundBackendWrite)) {
 				// if the master comes back from a previously failed or standalone state, reintroduce it in
 				// the appropriate HostGroup
-
-				cluster.StateMachine.AddState("ERR00071", state.State{ErrType: "WARNING", ErrDesc: fmt.Sprintf(clusterError["ERR00071"], err, s.URL), ErrFrom: "PRX", ServerUrl: proxy.Name})
+				errstr := ""
+				if err != nil {
+					errstr = err.Error()
+				}
+				cluster.StateMachine.AddState("ERR00071", state.State{ErrType: "WARNING", ErrDesc: fmt.Sprintf(clusterError["ERR00071"], proxy.Name, s.URL, errstr), ErrFrom: "PRX", ServerUrl: proxy.Name})
 				if psql.ExistAsWriterOrOffline(misc.Unbracket(s.Host), s.Port) {
 					err = psql.SetOnline(misc.Unbracket(s.Host), s.Port)
 					if err != nil {
@@ -406,7 +409,7 @@ func (proxy *ProxySQLProxy) Refresh() error {
 					cluster.LogPrintf(LvlInfo, "Monitor ProxySQL setting reader standalone server %s", s.URL)
 				}
 				if err != nil {
-					cluster.StateMachine.AddState("ERR00072", state.State{ErrType: "WARNING", ErrDesc: fmt.Sprintf(clusterError["ERR00072"], err, s.URL), ErrFrom: "PRX", ServerUrl: proxy.Name})
+					cluster.StateMachine.AddState("ERR00072", state.State{ErrType: "WARNING", ErrDesc: fmt.Sprintf(clusterError["ERR00072"], proxy.Name, s.URL, err), ErrFrom: "PRX", ServerUrl: proxy.Name})
 				}
 				updated = true
 			} else if s.IsSlaveOrSync() && !isFoundBackendRead && !s.IsIgnored() {