[PBR Materials folder to appear gray as to indicate that its function is unavailable]

How do I make it available? Does anyone know? I can't be the only person with this issue, why is it so difficult to find answers on how to solve this quickly? 

[Cannot derez object due to inventory fault.]

I got no more issues with my inventory. Thank you to whoever took pity on my soul Happy New Years!!!

[Cannot derez object due to inventory fault.]

4 minutes ago, Gage Wirefly said:

I thought might have been FIrestorm too, so I updated my SL Viewer and had the same problem. My inventory folder is not derezing anything. I emptied the cache twice, empty my Lost and Found folder, restarted, I don't know what else to do.

 

 

[Cannot derez object due to inventory fault.]

I can rez things but then I can't take them or delete them. In one instance an object that is no copy or modify I can see it it is still on the parcel but it is also in my lost and found folder after I got an error that could not be derezed. It is also taking a long time to rez my avatar. Can't take anything back right now. It is very frustrating. Please help!