Dear rok.sajovic
1. translate in this file root\language\overrides\en-GB.override.ini. it will override translate in our template and in component, modules...
if no you can translate in our template by copy this text to templates\sj_university2\language\en-GB\en-GB.tpl_sj_university2.ini
or in root\language\en-GB\en-GB.tpl_sj_university2.ini
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p/s: because our develop translate this text in root\language\en-GB\en-GB.tpl_sj_university2.ini so when install the template it is missing in templates\sj_university2\language\en-GB\en-GB.tpl_sj_university2.ini
2 about error: Serialization of 'SimpleXMLElement' is not allowed
-> 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);
3. about sidebar for K2 articles/category
-> please create the menu items assign for your category
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then select this menu item for the module:
prntscr.com/gybq9t
thanks