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Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, non-static method wf_gmap::init() cannot be called statically in /home/escapey/happyhour/wp-includes/class-wp-hook.php:286 Stack trace: #0 /home/escapey/happyhour/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters() #1 /home/escapey/happyhour/wp-includes/plugin.php(453): WP_Hook->do_action() #2 /home/escapey/happyhour/wp-settings.php(467): do_action() #3 /home/escapey/happyhour/wp-config.php(107): require_once('...') #4 /home/escapey/happyhour/wp-load.php(37): require_once('...') #5 /home/escapey/happyhour/wp-blog-header.php(13): require_once('...') #6 /home/escapey/happyhour/index.php(22): require('...') #7 {main} thrown in /home/escapey/happyhour/wp-includes/class-wp-hook.php on line 286