Did you manage to get this resolved? As the log suggests, make sure you passed all the checks in the pre-installation checklist, espeically aroudn user accounts and passwords. Since the metata configuration finished with warnings, your installation will fail on multiple steps. I would suggest you don't select continue with errors, fix the errors as you progress through the configuration. However, if all you checks are in place and all prerequisites are met, chances are your installation will complete successfully. Hope that helps, either way - please share your resolution, it will be very useful for others.
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