# /var/www/slims9/lib/Opac.php:346
^ mysqli_sql_exception {#86
  #message: "You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '-20' at line 1"
  #code: 1064
  #file: "/var/www/slims9/lib/contents/librarian.inc.php"
  #line: 45
  #sqlstate: "42000"
  trace: {
    /var/www/slims9/lib/contents/librarian.inc.php:45 {
      include …
      › // query librarian data
      › $librarian_q = $dbs->query('SELECT * FROM user WHERE user_type IN (1,2) ORDER BY user_type DESC LIMIT 20 OFFSET ' . $offset);
      › if ($librarian_q->num_rows > 0) {
    }
    /var/www/slims9/lib/Opac.php:163 {
      SLiMS\Opac->loadFileContent() …
      › 
      › include LIB . 'contents/' . $this->path . '.inc.php';
      › $this->matchPath = true;
      arguments: {
        "/var/www/slims9/lib/contents/librarian.inc.php"
      }
    }
    /var/www/slims9/lib/Opac.php:341 {
      SLiMS\Opac->handle(string $path) …
      › ->loadPluginPath() // Plugin first
      › ->loadFileContent() // or from lib/contents/
      › ->loadDbContent() // or from database
    }
    /var/www/slims9/index.php:89 {
      {closure} …
      › $Opac->onWeb(function($Opac){
      ›   $Opac->handle('p')->orWelcome();
      › })->onCli();
    }
    /var/www/slims9/lib/Opac.php:312 {
      SLiMS\Opac->onWeb(Closure $callback) …
      › {
      ›     if (!isCli()) $callback($this);
      ›     return $this;
    }
    /var/www/slims9/index.php:88 {
      › // Path process or show welcome page
      › $Opac->onWeb(function($Opac){
      ›   $Opac->handle('p')->orWelcome();
    }
  }
}