The foil has not been removed from the connector of the detergent cartridge.
If not all of the foil is removed from the connector of the detergent cartridge, the cartridge will be difficult to insert.
The TwinDos unit may be damaged.
Detergent may leak into the appliance in an uncontrolled manner and cause damage.
Remove all of the foil from the connector before inserting the detergent cartridge into the washing machine.
