a) why is your project in the public_html folder ? This is insecure
b) why are you running a cron job to fire a shell command? just run artisan direct from your cron job
cd /home/u959931697/domains/checknrecheck.com/public_html && /usr/bin/php artisan schedule:run >> /dev/null 2>&1
adjust the above to the root of your laravel project