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A fatal, non-recoverable error has occurred

This happened upon sign in after install, any suggestions?? my sytem requirements have been met. mysql version.... 4.1.21-standard php version........ 4.4.4 Operating system....Linux A fatal, non-recoverable error has occurred Technical information (for support personel): Error Message The "UserManager" class referenced by "UserManager" does not appear to exist. Affected Elements ObjectFactory.NewObject(); For additional support documentation, visit the Lussumo Documentation website at:


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    You sure all the files were uploaded correctly? Looks like something might have got messed up in one of the library folders.
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    Will try complete wipe and start over with new unarchived files and see what happens. will get back soon thanks for advice.
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