[vajb]

Reinstalled from scratch and remade all changes for the arcade, eventually the error occured again so I reuploaded an unmodified file, when I reuploaded global.php the showthread page worked fine again.

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global.php
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Find:
__________________________________________________ ______________________________ ___________

echo "End call of global.php: $aftertime\n";
echo "\n<hr />\n\n";
}

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Below this, add:
__________________________________________________ ______________________________ ___________

// Creates general settings for the Arcade
$arcadegeneral = convert_bits_to_array($arcadesettings,$_ARCADE);
$arcadeuser = convert_bits_to_array($bbuserinfo['arcadesettings'],$_ARCADEUSER);
$arcadepermissions = convert_bits_to_array($permissions['arcadepermissions'],$_BITFIELD['usergroup']['arcadepermissions']);

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Save and Close
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So its something in there in global.php that my forum just doesnt like (unmodified except for this install of the arcade)