The error is displayed on the page "Memcached Extension not loaded."

installation ok and white page memcache and cache ok

its not new tracker code bigjoos it TBDEV 09 how can you say its new lol:muscle: same code with addons

???????????????????

This only shows that you have the php extension installed, not the memcached server.

Assuming debian or derivatives.

error White page
memcached installed
http://www.chomikboks.pl/signup.php
php 5.6 does not work / php 7.0 does not work
Help me :)

//== DB setup
$INSTALLER09['mysql_host'] = 'localhost';
$INSTALLER09['mysql_user'] = 'xxxxxxxt';
$INSTALLER09['mysql_pass'] = 'xxxxxxx';
$INSTALLER09['mysql_db'] = 'xxxxxx';
//== Cookie setup
$INSTALLER09['cookie_prefix'] = ''; // This allows you to have multiple trackers, eg for demos, testing etc.
$INSTALLER09['cookie_path'] = ''; // ATTENTION: You should never need this unless the above applies eg: /tbdev
$INSTALLER09['cookie_domain'] = ''; // set to eg: .somedomain.com or is subdomain set to: .sub.somedomain.com
$INSTALLER09['domain'] = ' '

php 5.6 does work, but you need to change the config.php file...first

BEFORE you install, change these four lines in the /install/extra/config.phpsample.php

const REQUIRED_PHP = 70000, REQUIRED_PHP_VERSION = '7.0';
if (PHP_VERSION_ID < REQUIRED_PHP)
die('PHP '.REQUIRED_PHP_VERSION.' or higher is required.');
if (PHP_INT_SIZE < 8)

to read.....

const REQUIRED_PHP = 50000, REQUIRED_PHP_VERSION = '5.0';
if (PHP_VERSION_ID < REQUIRED_PHP)
die('PHP '.REQUIRED_PHP_VERSION.' or higher is required.');
if (PHP_INT_SIZE < 7)

This should work...always has for me...I've never upgraded past php 5.6

NOTE: If you've already installed, I believe you can change the same lines, now in the /include/config.php file.
And this is all assuming you have everything else correctly done as needed.

still to the same, I installed on php 5.6 and 7.0
see config

Bump: public_html/include/class/class_cache.php on line 72

why dont you just enable errors to be displayed and see what is actually going on ?
and btw.. if its a shared hosting server.. then forget about it

display error ->public_html/include/class/class_cache.php on line 72

hosting is not shared