Timer and Multirole for PCA20006

Question

Hello, I have implemented the code below for my project 
based on switching central and peripheral role in S130.
The code works fine on the Devkit PCA10028 but on porting it to PCA20006 I noticed some bugs in the final steps. 
 
 Without line 195 and 271 to 310 everything seems to work well on the Beacon, the LED is toggling in the right frequency. However after some time the frequency seems to roughly double. I cannot solidly quantify this observation. 
 Adding the above lines, the beacon does not switch on any LED at all. Only in debug mode the LEDs are switched on and the timer handler is entered. It seems there is a problem with my timer interrupt handling, but I dont know what. 
 I Am unsure if this code will be capable of handling 120 interacting nodes (well, mostly only up to 20 should be in close proximity) 
 
 Does anybody have an idea what could be my problem when porting to PCA20006? I am also grateful for any ideas to improve the code. 
 edit1: attached file instead of code: Corrected line numbers to reflect recent changes, as I corrected functionality.
edit2: For completness I attached to whole (ecplise) project folder . Putting it into /central_and_peripheral/experimental/ should work. The makefile is currently set for PCA20006. 
 edit2: attached updated code 
 edit3: final code

Tobias Hofbaur · Accepted Answer

Final conclusion with a lot of help from nordic support is that the implementation used too much power. I adapted the advertising and scanning cycles an achieved a running time of ~ 6 days. 
 The project itself was a great success at the summer school. I attached on figure showing the evolution of our disease. 
 
 The next picture show the succession of infections. We had some superspreaders who were well connected. 
 
 Thank you very much for your support.