You can see the log of requests to the site and the log of errors in the hosting control panel https://php.realhost.pro:8083
In the WEB section opposite the site you need, click the "Access Log" button
When accessing the hosting server via ssh, the log files are located along the path:
- /home/<username>/web/<domain name>/logs/<domain name>.log - log of requests
- /home/<username>/web/<domain name>/logs/<domain name>.error.log - error log