Im really struggling to find anything
I thought maybe the dots and dashes between numbers meant something, or the slashes at the end and start of numbers.
Im so discouraged ATM
I think they are using a grille cipher
Like this
But cutting out the squears that are highlighted here
The issue is finding what words to write into the grid
So I took E=5OUEHRA and put that across the boxes,
Filled in the letters and got VIWTRUIUGY which Quippup says is "Atrocities"