Fatal error: Uncaught Error: Interface "GuzzleHttp\BodySummarizerInterface" not found in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\guzzlehttp\guzzle\src\BodySummarizer.php:7 Stack trace: #0 {main} thrown in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\guzzlehttp\guzzle\src\BodySummarizer.php on line 7