Hello,
i bought a subscription a few weeks ago because there was a deal.
the first quickstart I want to install and I am very disappointed.
I tried to upgrage from 7.0 to 8.5 passing through 7.5.
I have only the top menu in backend, and Error 0 Serialization of 'SimpleXMLElement' is not allowed' in frontend.
I saw that there was only core joomla in the update sites, wich does not allow me to update extensions such as sp page builder or helix, which could be part of the problem.
I will have to choose another template, hoping there won't be the same issue.
I am disappointed and guess I won't regret my choice
Serge / web54.fr
Joomla template frameworks translator and tester

Dear sergeweb54

1. Error 0 Serialization of 'SimpleXMLElement' is not allowed' in frontend.
-> To fix this issue, please go to modules\mod_sj_contact_ajax\mod_sj_contact_ajax.php find code:

$layout = $params->get('layout', 'default');
$cacheid = md5(serialize(array($layout, $module->id)));
$cacheparams = new stdClass;
$cacheparams->cachemode = 'id';
$cacheparams->class = 'ContactAjax';
$cacheparams->method = 'getList';
$cacheparams->methodparams = $params;
$cacheparams->modeparams = $cacheid;
$list = JModuleHelper::moduleCache($module, $params, $cacheparams);

=> edit to:

$layout = $params->get('layout', 'default');
$list = ContactAjax::getList($params);


or

$layout = $params->get('layout', 'default');
$list = ContactAjax::getList($params, $module->id);

2. please send us the screenshot to clearer about this issue we will check it for you

thanks