Compatibility with hubiC service

I’m a long time happy user of Total Finder, but yesterday I wanted to subscribe to a data storage service This services uses a finder extension the same way TotalFinder does but the use of both of the extensions crashes the finder. I have tried to use only one of these two services and everything is ok, but both is a big no (even after restarting and so on).
I’m on MacOSX 10.9.5 using finder 10.9.4
If you want to have a look you can create a free account on hubic and get the application to test the problem.
Thanks in advance if you have some time to dig the problem…