Claim Glitching and Stealing of my Beacon

Hello so I was just playing LKSMP and I tp 2 of these players LAPAYA and vhgaming and after that I played another game for a while and I went back to play LKSMP and I saw my beacon gone and I asked to of them and they said they had it and I they didn't have permission to take it from me. But last time like yesterday I claimed the beacon and didn't give them trust .But they were able to take the beacon and the beacon was inside of my claim.

Claim glitching? No one can break anything inside a claimed area. Please send the location where your beacon was placed.