These are server logs.
PHP are OK for its ersion.
AH01075: Error dispatching request to :, referer: /wp-admin/theme-install.php to :, referer: /wp-admin/theme-install.php
AH01068: Got bogus version 46, referer: /wp-admin/admin.php?page=x-addons-home
AH01071: Got error ‘PHP message: PHP Warning: preg_match() expects parameter 2 to be string, array given in /var/www/vhosts//httpdocs/wp-includes/class.wp-styles.php on line 323\nPHP message: PHP Warning: strpos() expects parameter 1 to be string, array given in /var/www/vhosts//httpdocs/wp-includes/class.wp-styles.php on line 323\n’, referer: /wp-admin/admin.php?page=x-addons-home
AH01068: Got bogus version 46, referer: /wp-admin/themes.php
AH01075: Error dispatching request to :, referer: /wp-admin/themes.php
AH01068: Got bogus version 46, referer: /wp-admin/admin.php?page=x-addons-home
AH01075: Error dispatching request to :, referer: /wp-admin/admin.php?page=x-addons-home