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  3. Monday, 19 January 2026
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I installed the NINA demo but It gave an error

Error
"Duplicate entry '700-5.3.0-2025-03-14' for key 'PRIMARY'"

The site is there - but I cannot enter as administrator as the username/password I entered does not work

Warning
"Username and password do not match or you do not have an account yet."

Any fixes are more than welcome.

Thanks
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Hello,

do you have access to the database?
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Yes - through Plesk
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Okay, it seems to me that there is an error in the database.
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That is clear, It was a clean install, new database, any suggestions?
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Which Joomla and PHP versions?
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Joomla 5.3.3, (as delivered with the NINA demo) , PHP 8.4.15 (latest)
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Have you tried a different PHP version?
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