SV705C requires indi_sv305_ccd driver for INDI 1.9.8 or later.
I strongly recommend the indi_svbony_ccd driver for INDI 1.9.9. It contains important fixes and improvements.
Unfortunately, the astroberry repository is still on INDI 1.9.7 and does not support SV705C.
Ok I made it work. I have built manually libsvbony and indi_svbony. That did not work either but i fixed that with simple trick.
I had to disable Autoconnect, and then connect manually. Conection takes roughly 30 seconds, but it connects and everything works except binning. 2x is grayscale, 3x is half and half 4x is grayscale. But I do not care about that. What is important it works. that is good.
Rendering Error in layout Message/Item: array_keys(): Argument #1 ($array) must be of type array, null given. Please enable debug mode for more information.