It's not exactly the same as I can use the whole Java-GUI as expected and I can open othe than the "File Reputation Alert"-Reports without any Problem.
So here are some screenshots:
1.) Login Java GUI (SEPM:9090)
I entered my credentials and passed to the Java-GUI Homescreen (see 2)
2.) Java-GUI Home-Screen
I used the link "View Notifications" marked by the green arrow
3.) Java-GUI View Notification
I used the both links to the reports first the one which guides me to 4a, then the FR-Link that results in 4b
4.a) A working report
4.b) The not working link
I entered my credentials and where guided to 5)
5) Welcome to the web-client :(
I used again the "View Notifications"-Link
6) Notifications in the web client
I clicked again the FR-Report marked with the green arrow
7) And again :(
So this is the same situation as given in 4.b, so welcome to the loop ;)