So after many minutes, there is this warning:
"Fatal error: Uncaught MySQL server has gone away<br /><br /><pre> SELECT domain, domain_ssl FROM ps_shop_url WHERE main = 1 AND id_shop = 1 LIMIT 1</pre> thrown in /data23/isvitidla/html/classes/db/Db.php on line 635"
And after them:
[PrestaShopDatabaseException]
MySQL server has gone away
SELECT su.physical_uri, su.virtual_uri, su.domain, su.domain_ssl, t.id_theme, t.name, t.directory FROM ps_shop s LEFT JOIN ps_shop_url su ON (s.id_shop = su.id_shop) LEFT JOIN ps_theme t ON (t.id_theme = s.id_theme) WHERE s.id_shop = 1 AND s.active = 1 AND s.deleted = 0 AND su.main = 1 LIMIT 1
at line 635 in file classes/db/Db.php
629. WebserviceRequest::getInstance()->setError(500, '[SQL Error] '.$this->getMsgError().'. From '.(isset($dbg[3]['class']) ? $dbg[3]['class'] : '').'->'.$dbg[3]['function'].'() Query was : '.$sql, 97);630. }631. else if (_PS_DEBUG_SQL_ && $errno && !defined('PS_INSTALLATION_IN_PROGRESS'))632. {633. if ($sql)634. throw new PrestaShopDatabaseException($this->getMsgError().'<br /><br /><pre>'.$sql.'</pre>');635. throw new PrestaShopDatabaseException($this->getMsgError());636. }637. }638. 639. /**
DbCore->displayError - [line 325 - classes/db/Db.php] - [1 Arguments]
DbCore->query - [line 547 - classes/db/Db.php] - [1 Arguments]
DbCore->getRow - [line 199 - classes/shop/Shop.php] - [1 Arguments]
ShopCore->setUrl - [line 133 - classes/shop/Shop.php]
ShopCore->__construct - [line 388 - classes/shop/Shop.php] - [1 Arguments]
ShopCore::initialize - [line 94 - config/config.inc.php]
require - [line 34 - admin/index.php] - [1 Arguments]