[Emergency] Uncaught BadMethodCallException: Object->__call(): the method 'scaffoldSearchField' does not exist on 'PurpleSpider\MSG\SalesCategory'

GET /admin/pages/edit/show/44

Line 54 in /Users/james/Sites/Applecross Peninsula/Mountian & Sea Guides/web/vendor/silverstripe/framework/src/Core/CustomMethods.php

Source

45      * @throws BadMethodCallException
46      */
47     public function __call($method, $arguments)
48     {
49         // If the method cache was cleared by an an Object::add_extension() / Object::remove_extension()
50         // call, then we should rebuild it.
51         $class = static::class;
52         $config = $this->getExtraMethodConfig($method);
53         if (empty($config)) {
54             throw new BadMethodCallException(
55                 "Object->__call(): the method '$method' does not exist on '$class'"
56             );
57         }
58 
59         switch (true) {
60             case isset($config['callback']): {

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