Method delete does not exist

[north9527]

{
"message": "Method delete does not exist.",
"status_code": 500,
"debug": {
"line": 97,
"file": "/Users/north/www/fdb/vendor/laravel/framework/src/Illuminate/Support/Traits/Macroable.php",
"class": "BadMethodCallException",
"trace": [
"#0 /Users/north/www/fdb/vendor/torann/laravel-repository/src/Repositories/AbstractRepository.php(499): Illuminate\Support\Collection->__call('delete', Array)",

it's returned. why?