I checked out 188.8.131.52 and it does seem to support large memory addresses (required by larger format cameras):
So... it seems like something else is amiss here. A memory check (the maximum amount of memory that a process can allocate varies by OS), can be completed in the Windows Task Manager app. When you receive this error, before closing SGPro, right click the task bar, choose Task Manager then find SGPro and then see how much memory is allocated to it:
A memory leak could be the cause here... if SGPro or the driver is not cleaning memory up as it goes along, that number will increase over time. A simple increase in this number is not enough to definitively show a memory leak, but it's a start. If this error happens after some number of frames have been captured successfully, this is also another indicator that the process may be collecting image memory.
I'll take a look at the TEC stuff shortly.