array(4) {
  [0]=>
  int(2)
  [1]=>
  string(50) "unpack(): Type c: not enough input, need 1, have 0"
  [2]=>
  string(46) "/data/wwwroot/sites/KieCMS/libs/SimpleDict.php"
  [3]=>
  int(252)
}
array(4) {
  [0]=>
  int(2)
  [1]=>
  string(145) "Cannot modify header information - headers already sent by (output started at /data/wwwroot/sites/vendor/hightman/xunsearch/lib/XS.class.php:710)"
  [2]=>
  string(44) "/data/wwwroot/sites/KieCMS/Http/Response.php"
  [3]=>
  int(221)
}
<br />
<b>Fatal error</b>:  Uncaught TypeError: Unsupported operand types: int &amp; string in /data/wwwroot/sites/vendor/hightman/xunsearch/lib/XS.class.php:711
Stack trace:
#0 [internal function]: xsErrorHandler(2, 'Cannot modify h...', '/data/wwwroot/s...', 221)
#1 /data/wwwroot/sites/KieCMS/Http/Response.php(221): header('HTTP/1.1 500 In...')
#2 /data/wwwroot/sites/KieCMS/Core/Boot.php(261): KieCMS\Http\Response-&gt;output()
#3 [internal function]: KieCMS\Core\Boot-&gt;onException(Object(TypeError))
#4 {main}
  thrown in <b>/data/wwwroot/sites/vendor/hightman/xunsearch/lib/XS.class.php</b> on line <b>711</b><br />