"weapons"
{
"driver" "mysql"
"host" "localhost"
"database" "admin_s****"
"user" "admin_s**"
"pass" "271532******"
}
change "localhost" to either "127.0.0.1" or your servers public IP address.
srcds cannot find your mysql.sock file to be able to connect to your local MySQL database. this is a common error when srcds is run inside for example a Docker container (i.e. Pterodactyl game panel) where it cannot access the mysql.sck file, or you may have to create a symlink depending on what linux distro and version you use.
or as i said, you can just change localhost to your servers IP and let MySQL driver connect thru IP and not the sock file.
the problem here is that your database connection is not configured correctly, thats why the plugin cannot save skin and knife selections, thus they're gone after you lose them (die etc)