Thanks Simon for your HELP.
i have a strange case have been tree days trying to define it
i'm running java 11 which is the most friendly support to zap as i guess.
running Linux pop-os 5.15.15-76051515-generic
the issue is when i install zap as fresh installation works well spidering target and discover bugs (xss, sqli, etc...)
and after about testing with zap for bout 2 hours suddenly it doesn't spider the whole target as it was doing before
it just fetch first host url and of course doesn't discover any bugs because it didn't spider in the first place .
is that make any sense ?
i was like going insane, it was just working fine and nothing change !!!
any way to debug this to discover what is the issue
BTW : i catch this message in cli
"736377 [ZAP-ProxyThread-704] WARN org.parosproxy.paros.core.proxy.ProxyThread - Failed to write/forward the HTTP response to the client: java.net.SocketException: Broken pipe (Write failed)"
dose message has any thing related to my problem ?
Thank you really