Today (may 9th, so 5 weeks later), PAWS was updated. It works again tgouth.
The "sleeping" message you will see every now and then. It happens when the lag on the replication servers is too big (recently like half of the day, can take an hour or more to resolve). See https://grafana.wikimedia.org/d/000000489/wikidata-query-service?panelId=8&fullscreen&orgId=1 for the current replication-status.
There is a workaround, if you open a terminal (new->terminal) you can edit the settings file:
and add a line with
Unfortunately the life time of this settings is your current session, and till now I have not really seen it working well yet.