Fatal error: Uncaught TypeError: preg_match_all() expects parameter 2 to be string, boolean given

[w-a-s]

Hi,
I have some problem with ver 0.13.8 after install.
Any query take me next error (examples teke a same results):
Fatal error: Uncaught TypeError: preg_match_all() expects parameter 2 to be string, boolean given in /home/www/vendor/webonyx/graphql-php/src/Language/Source.php:76 Stack trace: #0 /home/www/vendor/webonyx/graphql-php/src/Language/Source.php(76): preg_match_all('/\r\n|[\n\r\xE2\x80\xA8\xE2...', false, Array, 256) #1 /home/www/vendor/webonyx/graphql-php/src/Error/Error.php(274): GraphQL\Language\Source->getLocation(0) #2 [internal function]: GraphQL\Error\Error::GraphQL\Error{closure}(0) #3 /home/www/vendor/webonyx/graphql-php/src/Error/Error.php(276): array_map(Object(Closure), Array) #4 /home/www/vendor/webonyx/graphql-php/src/Error/FormattedError.php(205): GraphQL\Error\Error->getLocations() #5 /home/www/vendor/webonyx/graphql-php/src/Error/FormattedError.php(307): GraphQL\Error\FormattedError::createFromException(Object(GraphQL\Error\SyntaxError)) #6 [internal function]: GraphQL\Error\FormattedError::GraphQL\Error{closure}(Object(GraphQL\Error\SyntaxError)) #7 /home/www/vendor/webonyx/graphql in /home/www/vendor/webonyx/graphql-php/src/Language/Source.php on line 76

What's wrong?
How fix it?
Thanks!