Ok, but all the other pools are running on yiimp and there the "stratum_recv_line failed"-error occures after a few shares and is not recovering until i start miner new.
Is there any solution i can work on to prevent this error?

It's happened to me few times but it not seend to affect my hashrates. And it passes itdelf aster minute or so.
Anyway i would suggest you to use such batch file
:start
cpuminer-aes-sse42 -a yescryptr16 -o stratum+tcp://hash4value.pw:6333 -u -p c=ELI --time-limit=
goto:start
Where is time after which miner will exit. But your batch file will star it again. This way u do not need to restart it manualy. Since miner start realy quick you will not loose any time. I would recomend you to set timeout to something like 10 minutes.