Assuming this is line 77: 
         $grouping-;

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It looks like you want to subtract something. Perhaps you meant to auto-decrement: 

         $grouping--;

[download]

Please edit your node to fix the ending "code" tag: it should be "/code".

In reply to Re: error at line 77 by toolic
in thread error at line 77 by Wremmurg

Title:
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