Can I delete WordPress plugin and reinstall without losing data?

Hi. I have a WordPress plugin wpdataTables which works great. It broke other day by pop-up that says email is incorrect format when I go to the options menu. This happened before and I either uninstalled and installed plugin, or deleted plugin and reinstalled. Not sure which one but does anyone know which method could fix this bugged out code without deleting my data?
Asked Jun 10, 2015

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