Rhiannon Eberhardt

Hello. I have a good number of possesions that appear to have been stranded on a sim called "Poison" which has disappeared. I rented in good faith and am now being told my possesions are gone and unretrievable. Why would I not be able to retrieve my possesions? I would prefer not to take legal action but will do if neccessay; real-world dollars were spent on these items and there is no excusbale reason that they cannot be retrieved. Please advise.