Okay... I'm pretty sure I fixed up the plugin to correctly use CreateArray, FindStringInArray, GetArrayCell, RemoveFromArray, PushArrayString, and PushArrayCell.
See OP for latest Version 1.4
This plugin is only for you if you "only" want to stop people from gaining money by spectate hopping. If you want to also save the scores of the players, see the plugin mentioned in the OP called SaveScores
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