The recipe for reinforced glass appears to be missing all together.

Version: [1.7.10] SecurityCraft v1.8.2.4

What can I do to fix this for my players?

It's not very lightweight. The more cameras there are, the heavier the impact.

We changed the "recipe" of the reinforced glass blocks so you no longer "craft" them in the crafting grid. You now use the Universal Block Reinforcer instead. Either break placed glass blocks with the Reinforcer to reinforce them, or right-click with the U.B.R. in your hand, and a GUI will appear in which you can insert blocks. Once you close the GUI, the blocks will be automatically reinforced and dropped.

My fault brother. Off topic, but how well do the camera's and LookingGlass hold up on a server? Can this be used in "production"? Or does it lag players and/or the server?

Thank you again. Excellent mod.

Back to topic... I placed a glass-block and hit it with the UBR and now I have a block of reinforced glass on my floor. And I cant break it with the UBR. Great mod. Easy to understand...

SOLVED!
Needed the Universal block remover. How could I not have guessed that...