An update here: I found out that the problem is the RAM. Cubase need with spark and 4 plugins 2.5 GB memory and after load next plugin, Cubase crashes.
Reaper need 30% less of memory, after i load 12 plugins the RAM will go to 2.5 GB and Reaper crashes to.
I also get an answer fromtechncal support Jerome, he asking me for the spark version number, i told him, waiting for his answer now.