Hi,

Mymasternode was running without problems.

No, I get the messages:
2017-10-31 11:00:38 CActiveMasternode::ManageStatus() - Checking inbound connection to '192.168.0.102:33820'
2017-10-31 11:00:38 CActiveMasternode::GetMasterNodeVin - Could not locate specified vin from possible list
2017-10-31 11:00:38 CActiveMasternode::ManageStatus() - Could not find suitable coins!
2017-10-31 11:00:38 CActiveMasternode::Dseep() - Error: masternode is not in a running status
2017-10-31 11:00:38 CActiveMasternode::ManageStatus() - Error on Ping: masternode is not in a running status

If I type masternode start in the debug window, it says:
12:03:40 masternode start
12:03:40 not capable masternode: Unknown. Check debug.log for more information.

Which refers to the above stated debug messages.

The only thing I can think of is that I am receiving mined tokens that are added to the wallet, which means the token amount is not exact 30.000.000 anymore.

My conf:
rpcuser=xxxxxx
rpcpassword=xxxxx
rpcport=33820
rpcallowip=127.0.0.1
daemon=1
server=1
listenonion=0
logtimestamps=1
maxconnections=256
masternode=1
masternodeprivkey=xxxxxxxxxxx
masternodeaddr=192.168.0.102:33820
addnode=104.238.159.161
addnode=45.32.77.164

Please help.