Coupling problem – Omega B Caravan

Hello, I came back two days ago from my well-deserved holiday. However with mixed feelings – reason: So on the penultimate day I wanted to pull the approximately 1,800 kg boat (incl. trailer) at the slip point out of the water (and I’m not doing this for the first time; with different towing vehicles), did NOT go forward despite the completely dissolved clutch! The clutch simply slipped through and in a very short period of time had a powerful smoke!! Now to my question: Is this with the Om ega normal, that the coupling may be undersized? Or is there a reinforced coupling for the Omega? After the ordeal and a subsequent 1,500 km home journey I no longer have much confidence in this coupling and want to fix this error as quickly as possible. Please for information / tips. Thank you in advance. Greetings, QP_Bertone_19 PS: km-Performance: 50,000 (without trailer), just recently AHK installed, other vehicle data can be found in the signature!