Question StarGo and X-Solver

Hello,
I have for a long time problems when I want to use the X-Solver with the Linear.
I do a polar alignment of the mount with the PoleMaster.
The mount is then placed in the home position and I do a Sync Home Position.
In StarGo I choose a star located near target object. With the HandBox I put the star in the center of the image and do a sync.

I start the X-Solver.
With the Blind Solver more time is needed and the solve succeed sometimes (if the necessary time is less than 90 s).
With the Local Plate Solver it succeed not (despite starting ANSVR and use of the Index Downloader and trying different Focal Lenght).

If I do the same with Sequence Generator Pro there are no problems with ANSVR and after about 5 s there is a solve.

Why does the X-solver not recognize Ansvr?

The latest version of Stargo 620 also not work very well: the connection stops every 15-30 min.
I use this now:

StarGo Ver. 5.6.4.3
Firmware Ver. 5.6.6
Ascom Driver V.6.8.2.63
Avalon Linear
Greetings,

François janssen

More Information:
ANSVR Log:
[2020-01-24 12:11:37] ansvr 0.20 start
[2020-01-24 12:11:37] loading config from /var/tmp/platesolve/config
[2020-01-24 12:11:37] read port 8080 from reg
[2020-01-24 12:11:37] using scale error override value 10 percent
[2020-01-24 12:11:37] using downsample 2
[2020-01-24 12:11:37] solution coordinates will use epoch J2000
[2020-01-24 12:11:37] saving config to /var/tmp/platesolve/config
can't setup server: Address already in use at /opt/ansvr/ansvr line 131

Greetings

François