Spotlight endpoint suddenly stops working

[jlgasparrini]

Everything was OK, I installed it on Ubuntu 18.04 two months ago, but last week and today, without any reason, endpoint didn't respond anymore!

sudo docker ps shows me that containers are running well

CONTAINER ID        IMAGE                       COMMAND                  CREATED             STATUS                  PORTS                  NAMES
aff9390cf53a        dbpedia/spotlight-spanish   "spotlight.sh"           2 months ago        Up 17 minutes           0.0.0.0:2223->80/tcp   loving_zhukovsky
e914de8034cc        dbpedia/spotlight-english   "spotlight.sh"           2 months ago        Up 17 minutes           0.0.0.0:2222->80/tcp   sharp_poincare

Last lines from sudo docker logs CONTAINER_NAME

[main] INFO org.dbpedia.spotlight.db.memory.MemoryStore$ - Done (32981 ms)
[main] INFO org.dbpedia.spotlight.db.memory.MemoryStore$ - Loading MemoryContextStore...
[main] INFO org.dbpedia.spotlight.db.memory.MemoryStore$ - Done (60347 ms)
[main] INFO org.dbpedia.spotlight.db.memory.MemoryStore$ - Loading FSADictionary...
[main] INFO org.dbpedia.spotlight.db.memory.MemoryStore$ - Done (1388 ms)
[main] INFO org.dbpedia.spotlight.web.rest.Server - Initiated 1 disambiguators.
[main] INFO org.dbpedia.spotlight.web.rest.Server - Initiated 2 spotters.
May 08, 2019 6:53:24 PM com.sun.grizzly.Controller logVersion
INFO: GRIZZLY0001: Starting Grizzly Framework 1.9.48 - 5/8/19 6:53 PM
Server started in / listening on http://0.0.0.0:80/rest
[main] INFO org.dbpedia.spotlight.web.rest.Server -  Core threads: 5
[main] INFO org.dbpedia.spotlight.web.rest.Server -   Max threads: 5
[main] INFO org.dbpedia.spotlight.web.rest.Server - Max POST size: 2097152

• OS: Ubuntu 18.04.2 LTS
• Docker version 18.09.3, build 774a1f4
• docker-machine version 0.13.0, build 9ba6da9
• docker-compose version 1.17.1, build unknown

I need help, I'll provide any kind of information that you need!
THANKS 🙏