Cant seem to install

Hello when I try andinstall the events plugin in it says it does not have a vailid header. Then I try and just uplaod the plugin through ftp and as soon as I do the files in the plugin folder disappear I have never seen this.

Now I originally had events manager and evetns manager pro install and have deleted them due to database issues.

PLease help

Thanks Maxx Fairo

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