Hello, my name is Rusty. TOC error is Table of Contents. It's the inner most part of the disc. That could be caused by a few things. You said you cleaned the discs, so let's rule that out. Your laser is either dusty, or has burned out.
The first thing to try is to get a store bought CD lens cleaner. You can use it in any slot, they all use the same laser. Run the cleaner as per the instructions on the package. If you still get the error, the laser will need to be replaced. Let me know what happens, and we'll weigh cost of the repair vs cost to replace.