fix: #7352

src/database/redis.js

@@ -114,6 +114,9 @@ redisModule.connect = function (options, callback) {
 				throw err;
 			}
 		});
+	} else {
+		callbackCalled = true;
+		return callback(new Error('[[error:no-database-selected]]'));
 	}
 
 	return cxn;
@@ -186,9 +189,11 @@ redisModule.info = function (cxn, callback) {
 			});
 
 			const keyInfo = redisData['db' + nconf.get('redis:database')];
-			redisData.keys = keyInfo.split(',')[0].replace('keys=', '');
-			redisData.expires = keyInfo.split(',')[1].replace('expires=', '');
-			redisData.avg_ttl = keyInfo.split(',')[2].replace('avg_ttl=', '');
+			if (keyInfo) {
+				redisData.keys = keyInfo.split(',')[0].replace('keys=', '');
+				redisData.expires = keyInfo.split(',')[1].replace('expires=', '');
+				redisData.avg_ttl = keyInfo.split(',')[2].replace('avg_ttl=', '');
+			}
 
 			redisData.instantaneous_input = (redisData.instantaneous_input_kbps / 1024).toFixed(3);
 			redisData.instantaneous_output = (redisData.instantaneous_output_kbps / 1024).toFixed(3);