Possible solutions of your questions

Hello.
please Check the rights for folders and files.
Rights should only be 644 for files, 755 for folders. Permissions 777 prohibited and do not require
In the file .htaccess should not be of type php settings php_value, php_flag. php is running as cgi and make these customizations in the php files.ini .
Error You can see in the control panel, the error Log

you have an error

PHP Fatal error: Class `JUri` not found in /home/tarasuk7/xn--80aaalhqh1aigcwcmp.xn--j1adq.xn--c1avg/libraries/joomla/application/web.php on line 1115

verify that, don`t worry about the script?