“Internal server error” when piggybacking (in PHP)

[joshuabaker]

Describe the bug

I’m getting an internal “Internal server error” error for seomatic when using GraphQL via the PHP Craft service.

• The query works fine via the GraphiQL interface
• I can’t see anything in the logs
• I’ve cleared all caches
• I’ve tried resaving all entries

I’m really struggling to debug. Do you have any idea why this might happen?

To reproduce

I’ve simplified the use case down to just getting the metaTitleContainer.

PHP

$schema = Gql::createFullAccessSchema();

$query = "
  {
    entry(id: 555) {
      seomatic {
        metaTitleContainer
      }
    }
  }
";

$response = Craft::$app->getGql()->executeQuery($schema, $query);

Response

{
  "errors": [
    {
      "message": "Internal server error",
      "category": "internal",
      "locations": [
        {
          "line": 4,
          "column": 17
        }
      ],
      "path": [
        "entry",
        "seomatic"
      ]
    }
  ],
  "data": {
    "entry": {
      "seomatic": null
    }
  }
}

Versions

• Plugin version: 3.3.26
• Craft version: 3.5.15.1