Warning: call_user_func_array() expects parameter 1 to be a valid callback, func
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When I upload any new plugin I get an error
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘wpp_default_options’ not found or invalid function name in /home/d****w/public_html/linkexample.com/wp-includes/class-wp-hook.php on line 286
I tried deactivating the WP Proposal plugin and the warning stops showing when I upload other plugins.
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