Pun troubleshooting after load arena

Hi , sorry for my little english.
I have a game crash after load arena.
The arena is a isle , my instantiations is the trees , bush , etc ...
The instantiations is 30 000 entity .

In the begin in the game , my player have a view id = max view id + 1;
the game crash after loading arena , 10sec after.

I have rated the MaxVewId to 100 000 in the PhotonNetwork script for instance my trees , bush , etc ...

the network Pun crash without message in the console.
It destroy all in the scene.

Any answer of pistes to my problem ?