[Typo3] plugin_mgm not loaded?

[Kristian Wind]

Hello!

Have had some problems upgrading tt_news on an old 3.5.0 server. The site is running again, but when I try to log into Typo3, it tells me:

    Typo3 Fatal Error: Extension key 'plugin_mgm' was NOT loaded!


Any idea?


Kristian Wind (kristianwind)

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