Quest taken away

Ksteppe10

So last night I was playing The island of Modok quest and I got stuck on the boss and had no units but I was waiting for my arena champs to come back so I could buy a revive and then Maintenance was about to happened it also started a little bit early,After I got sleep and woke up I logged on the game and was going to finish the quest but it said this quest has expired I thought nothing of it until it locked me out of the quest and took away my sample collector so that mean I lost gold coins 5* and 4* shards And health potions I used I hope y’all can fix this problem and tell the and me

community what happened.