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I have been using the plugin for a while but visitors are experioencing a fatal error message since two weeks ago. The message I am getting fddrom WP is “An error of type E_ERROR was caused in line 288 of the file /wp-content/plugins/ip-based-login/init.php. Error message: Uncaught TypeError: method_exists(): Argument #1 ($object_or_class) must be of type object|string, null given in /wp-content/plugins/ip-based-login/init.php:288”. Any kind of solution for this problem?