"Find Duplicates" yields this error message..

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Warning: SugarController::require_once(modules/MergeRecords/MergeRecord.php) [function.SugarController-require-once]: failed to open stream: No such file or directory in /home/sirspeed/public_html/include/MVC/Controller/SugarController.php on line 220

Fatal error: SugarController::require_once() [function.require]: Failed opening required 'modules/MergeRecords/MergeRecord.php' (include_path='/home/sirspeed/public_html/include/..:.:/usr/lib/php:/usr/local/lib/php') in /home/sirspeed/public_html/include/MVC/Controller/SugarController.php on line 220

What's causing it?

How do I fix it, please?

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Anybody? When I click on the "Find Duplicates" button I'm getting big-time error messages.

SAME THING is happening when I try to use the "Merge"records button.

Somebody talk to me!!