Grid Pro plugin config SQL error

Hi,

I'm currently updating extensions on an older website.

I updated YOOtheme to version 5, but after that the site started throwing errors. I already tracked it down to Grid Pro — the site had version 1.1.0 installed, so I manually updated it to 1.1.8. The frontend works now.

However, if I try to open the plugin configuration itself:
administrator/index.php?option=com_plugins&view=plugin&layout=edit&extension_id=243

I get this error:

1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1Call Stack#FunctionLocation1()JROOT/libraries/vendor/joomla/database/src/Mysqli/MysqliStatement.php:1382mysqli->prepare()JROOT/libraries/vendor/joomla/database/src/Mysqli/MysqliStatement.php:1383Joomla\Database\Mysqli\MysqliStatement->__construct()JROOT/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:9724Joomla\Database\Mysqli\MysqliDriver->prepareStatement()JROOT/libraries/vendor/joomla/database/src/DatabaseDriver.php:17805Joomla\Database\DatabaseDriver->setQuery()JROOT/plugins/system/jp_ce_grid_pro_joomla/fields/jpkey.php:476JFormFieldJpkey->getInput()JROOT/libraries/src/Form/FormField.php:1056