Can't upload images to wiki

Here's a screenshot: Screenshot_2024-10-07_at_7.51.11_AM

Inspecting the request in the console shows this error:

Fatal error: Declaration of Wikimedia\ParamValidator\Util\UploadedFile::getStream() must be compatible with Psr\Http\Message\UploadedFileInterface::getStream(): Psr\Http\Message\StreamInterface in /var/www/html/includes/libs/ParamValidator/Util/UploadedFile.php on line 86
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information

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