No show all alerts

No show all alerts

Hi,
 
I have some troubles to watch all alerts, in the first attached image there are the configure alerts, as you can see it show me 204 alerts for COMCEL-PROYECTO, but when I try to see all list like in the second image, it show me only 100 and the problem is that the next buttom it's unable.
 
I'll appreciate your help to solve it.
 
 
Sandra

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