Plugin keeps saying needs to be updated and it’s in a constant loop [closed]

I’d just deactivate then uninstall then install again. Depending on the plugin, you might lose some customization or settings. But a lot of plugins don’t remove anything they stored in the wp-options table (normally where plugin options are stored), so you may not lose any settings.

But I’d go to the plugins’ support page. That’s the best place for plugin support.

Added

Since the plugin support route didn’t work, perhaps you can ‘force’ the plugin not to be checked for updates.

This question has some ways to do it: https://stackoverflow.com/questions/17897044/wordpress-how-to-disable-plugin-update

with this code (adjust for the plugin’s folder):

add_filter('site_transient_update_plugins', 'remove_update_notification');
function remove_update_notification($value) {
     unset($value->response[ plugin_basename(__FILE__) ]);
     return $value;
}

Put that in the site’s function.php (optimally in a Child Theme), or in a (possibly private) plugin of your own.