Good evening! I'm having some issue with ceiling in 3d rendering. Some lines appear, how can I remove? thanks

Solved re-installing jre 8 and Sh3d last version

Hi,
I recently updated sh3d to 6.2 and jre 8 under W10 64 bit.
I'm experiencing some issues with photo creation:
- crush with jre error
- creation very slow and 100% cpu usage using yafaray rendering engine.
- simple photo rendering 1.9 with sunflow rendering engine seems not able to start the ...