I'm getting the following error: SQLSTATE[23000]: Integrity constraint violation.

Next time please disable the compilation before uploading the extension files to your server.

This time please

  • Open app/etc/local.xml
  • Replace

    <disable_local_modules>false</disable_local_modules>

    with 


           <disable_local_modules>true</disable_local_modules>

  • Log in to admin panel and disable the compilation.
  • Revert the changes in the local.xml
  • Clear the cache.

 

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