Every service has occasional problems and I think we all know that. Unfortunately, those who used the exchange at the time when these problems occurred obviously experienced inconvenience, but I completely agree with @icopress that we just need to be patient and that everything will be solved.

I don't know if there is any data from where the owners of the service come from or where the servers are located, but it's hellishly hot in most of Europe and parts of the US, so there are frequent power outages and there may be problems with server operation. It should also be taken into account that it is the time of annual vacations in the northern hemisphere.