Here is a fix for memory allocation:
You must download CFF Explorer. (just google it)
Run as administrator
File->Open-> look for the l2.exe on your computer
Once is open, follow the numbers and save the file (button)
Remember, allways do a backup of your l2.exe if something goes wrong.
This is a memory issue, the l2.exe has a limite of 2gb, I think I can help on this issue, but first I need to talk with the GM, to upload a file or tell him how can be fixed editing the l2.exe. And then he can upload the fix. Tomorrow I will contact the GM.