Product-Variantlist: SQL-query error

[Xirdion]

Hello.

There is a sql-error when showing a product-variant-list. The syntax of the query is not correct.
Isotope-Version: 2.5.12
Contao-Version: 4.4.36

It seems that in Line 40 in ProductVariantList.php there is a closing parenthesis too much.

An exception occurred. {"exception":"[object] (Doctrine\DBAL\Exception\SyntaxErrorException(code: 0): An exception occurred while executing

'SELECT ... FROM ... WHERE tl_iso_product.language='' AND tl_iso_product.published='1' AND (tl_iso_product.start='' OR tl_iso_product.start<'1553680320') AND (tl_iso_product.stop='' OR tl_iso_product.stop>'1553680380') AND ((tl_iso_product.pid=0 AND tl_iso_product.type NOT IN (SELECT id FROM tl_iso_producttype WHERE variants='1')) OR tl_iso_product.pid>0)) AND c.page_id IN (...) GROUP BY tl_iso_product.id, translation.id'

So the error is in this part of the query:
((tl_iso_product.pid=0 AND tl_iso_product.type NOT IN (SELECT id FROM tl_iso_producttype WHERE variants='1')) OR tl_iso_product.pid>0))

SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND c.page_id IN (...) GROUP BY tl_iso_product' at line 4 at /.../vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php:99, Doctrine\\DBAL\\Driver\\PDOException(code: 42000): 

SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND c.page_id IN (...) AND GROUP BY tl_iso_product' at line 4 at /.../vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:109, PDOException(code: 42000): 

SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND c.page_id IN (...) AND tl_iso_product.basic=1 GROUP BY tl_iso_product' at line 4 at /.../vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:107)"} []