diff --git a/internal/rpc/group/group.go b/internal/rpc/group/group.go
index 8904e8edf..af80de0ff 100644
--- a/internal/rpc/group/group.go
+++ b/internal/rpc/group/group.go
@@ -634,7 +634,7 @@ func (s *groupServer) JoinGroup(ctx context.Context, req *pbGroup.JoinGroupReq)
 	_, err = s.GroupDatabase.TakeGroupMember(ctx, req.GroupID, req.InviterUserID)
 	if err == nil {
 		return nil, errs.ErrArgs.Wrap("already in group")
-	} else if !s.IsNotFound(err) {
+	} else if !s.IsNotFound(err) && utils.Unwrap(err) != errs.ErrRecordNotFound {
 		return nil, err
 	}
 	resp = &pbGroup.JoinGroupResp{}
diff --git a/pkg/common/db/cache/rockscache.go b/pkg/common/db/cache/rockscache.go
index 2a7b0fe7d..f498e5d64 100644
--- a/pkg/common/db/cache/rockscache.go
+++ b/pkg/common/db/cache/rockscache.go
@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/log"
+	"github.com/OpenIMSDK/Open-IM-Server/pkg/errs"
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/utils"
 	"github.com/dtm-labs/rockscache"
 )
@@ -85,6 +86,9 @@ func getCache[T any](ctx context.Context, rcClient *rockscache.Client, key strin
 	if write {
 		return t, nil
 	}
+	if v == "" {
+		return t, errs.ErrRecordNotFound
+	}
 	err = json.Unmarshal([]byte(v), &t)
 	if err != nil {
 		log.ZError(ctx, "cache json.Unmarshal failed", err, "key", key, "value", v, "expire", expire)
diff --git a/pkg/common/db/controller/group.go b/pkg/common/db/controller/group.go
index 6aced79dc..519c863f3 100644
--- a/pkg/common/db/controller/group.go
+++ b/pkg/common/db/controller/group.go
@@ -127,7 +127,7 @@ func (g *groupDatabase) CreateGroup(ctx context.Context, groups []*relationTb.Gr
 				m[groupMember.GroupID] = struct{}{}
 				cache = cache.DelGroupMemberIDs(groupMember.GroupID).DelGroupMembersHash(groupMember.GroupID).DelGroupsMemberNum(groupMember.GroupID)
 			}
-			cache.DelJoinedGroupID(groupMember.UserID)
+			cache.DelJoinedGroupID(groupMember.UserID).DelGroupMembersInfo(groupMember.GroupID, groupMember.UserID)
 		}
 		return cache.ExecDel(ctx)
 	})