Add another condition to code

I am tweaking a macro. I need to add a condition to it. I only need the Else part to run if Col O ="P" and Col L = 1. Right now the first part runs when col O = "C" and Col L = 1 then the else part runs on everything else. If the rows of data don't fit into these 2 groups I don't need anything done to them.
What do I need to do?
Thank you for your time and help.

Here is code now.

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Try adding the red code below:

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HTH

Jason

I added the code but when I tested it, it doesn't stop running. Seems to be staying in this endless loop.
Any ideas??
Here is entire code below. With your updated added. Note: When I hit ctrl+alt+esc to interrupt code and choose to debug, it highlights the elseif statement?

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