When we tried to disable wpyoutubelyte

Our activity page broke, with the message below, when we tried to disable youtube lyte to figure out why Youtube videos, which were showing on the activity page, just suddenly disappeared. It was as if youtube video URLs were not there. And we did not update the plugin or our theme. We tried restoring the website to a previous time when it worked fine, but that did not help.

Will appreciate any of your recommendation(s). Thanks

Message
call_user_func_array()expects parameter 1 to be a valid callback, function ‘lyte_parse’ not found or invalid function name in /home/eforreal/public_html/wp-includes/class-wp-hook.php on line 288

Code with the marked line number 288

// Avoid the array_slice if possible.
if ( $the_[‘accepted_args’] == 0 ) {
$value = call_user_func_array( $the_[‘function’], array() );
} elseif ( $the_[‘accepted_args’] >= $num_args ) {
$value = call_user_func_array( $the_[‘function’], $args );
} else {
$value = call_user_func_array( $the_[‘function’], array_slice( $args, 0, (int) $the_[‘accepted_args’] ) );
}
}
} while ( false !== next( $this->iterations[ $nesting_level ] ) );

unset( $this->iterations[ $nesting_level ] );
unset( $this->current_priority[ $nesting_level ] );

$this->nesting_level–; ——288

return $value;
}

The page I need help with: [log in to see the link]