Yacy Not listing to 8090

Something has gone wrong with my yacy install. It has worked for some time but recently stopped listening to port 8090. I’ve checked the conf and it is still configured to listen to that port. It is running,
just not listening for connections. I am at a loss as to how to troubleshoot further or restore it to working

This is how I troubleshut such situations on Linux:
If you start YaCy with startYACY.sh then first find out its process ID:

ps -ef | grep -e yacy | grep -v -e grep

Then show what ports its listening:

lsof -p [process id from above] | grep -e LISTEN

I get:

pi@raspberrypi:~ $ ps -ef | grep -e yacy | grep -v -e grep
pi         491     1 99 Jul05 ?        4-13:08:42 /usr/bin/java -Xms2400m -Xmx2400m -server [many libs skipped ...]  net.yacy.yacy
pi@raspberrypi:~ $ lsof -p 491 | grep -e LISTEN
java    491   pi  225u     IPv6      18391        0t0     TCP *:8090 (LISTEN)

Maybe you don’t look at the actual config files or YaCy needs more time to restart.

Thanks, but have determined it is failing to start and posted a new message with details. Something to do with SolrCore.