You have configured data logging to RAM, but you are running out of RAM for data points during the simulation.
You could put selection logic on the line so that you logged less information (e.g., decimate the signals before logging), or you could run at a lower frequency, or for less time.
Or you could configure logging to disk. This option might not be available for some kinds of simulation, possibly.
The can't reload message is not uncommon when you have run out of RAM, as the software is unable to find enough virtual memory to load in DLL that it swapped out.
