Out of memory
From Second Life Wiki
To solve the "OUT OF MEMORY" problem:
- Restart your client.
If the problem arises again after the relog:
- clear your cache and reduce graphics settings.
- Close any unnecessary programs and restart the computer.
If the problem persists, then your computer needs more RAM.
If you have more then 3 GB Ram its a problem with the Software and you should search for the Jira report