BM 3.8 SP4, NW6SP5, iManager 2.0.2. New Installation.

We can open iManager, see NBM Filter and VPN Configuration.
When i try to make a function like "Filter Maintenance"
the first step is:
- browse the server [ok]
- hit OK [ok]

then i see a yellow sign in the browser warning me about
a javascript error. In the following dialogues i can
select the text "delete filter config" but the "next>>"
Button does not work. Only the "cancel" button works.

The Javascript error looks like this:

Line: 1
Char: 1
Error: Character expected
Code: 0
taskID=bm.ConfigureDefaultFilters&merge=bm.FilterM tnce&
error=devGenErr&User.context=&nextState=NCPSelectF iltMtnce

In "Default Filter Configuration" i see similar errors

Line: 374
Char: 1
Error: Object expected
Code: 0

We removed VPN and BM NPM Modules completely. Tried
the NPMs from 3.8 sp3 and then 3.8 sp4 again. But
it never worked.

Any help appreciated.
Ralf Steiner