I have the same problem it is says: "no blocksource availabe" from about 10 days ago actually the last block had producd in the explorer 10 days ago is block (242790)  it is the same in the wallet, obviously there is no miner pointed to the BCO to produce the blocks.

My coins are stuck now in my windows wallet, the funny thing that i asked dev in CryptoBridge's discord about this problem and he told me litterly (The bco blockchain is no longer supported by us as mining ended. There is no block reward anymore but there are still miners that mine it. May take some time to produce a block though) so if they are not support the BCO blockchain, so who is the support.

so please anyone can give us a help in this problem?