TypeError: current(): Argument #1 ($array) must be of type array, string given in current() (line 159 of root-dir \modules\contrib\wisski\wisski_salz\src\Query\WisskiQueryDelegator.php)
Navigate to Manage Configuration WissKI Configuration (WissKI section) and check Do you want to use only main bundles for display? and Do you want to use views for navigation?. Click Save.
Go to Manage Configuration Pathbuilders (WissKI section) and recreate bundles for every pathbuilder by clicking on Edit in the Operations column and click Save and generate bundles and fields.