Why can't memory be 'read'?

Question

virtual box

On a new powerful computer (windows 10), 20 virtual machines are deployed on oracle. The error periodically takes off and it is necessary to abnormally complete work. RAM 128 GB, tried to add a swap file, disable DEP - it's useless. There are 5 more computers in the office with identical settings, but they work without problems.

Answer 1

Have you tried disabling the shared clipboard on this virtual machine? The error clearly points to it.

Answer 2

Address zero is never accessed. It was in the program
that the call to this address was continued without checking - but the memory was not allocated; Well, the protection works. It's either an Oracle curve, or some kind of library.
Don't want to switch to Linux?