autoblog Cannot redeclare class autoblogpremium

My programmer asked me to find answers for this following bug.
Can you provide the solution for this ?
Thanks
Olivier

- Auto Blog 2.0.1
After the installation reported:
Fatal error: Cannot redeclare class autoblogpremium in /home/unecerta/public_html/wp-content/plugins/autoblog/autoblog.php on line 35
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