[mod] disabling piratebay, according to #146 and https://torrentfreak.com/feds-receive-requests-to-shut-down-the-pirate-bay-140801/

searx/settings.yml

 server:
     port : 8888
     secret_key : "ultrasecretkey" # change this!
-    debug : False # Debug mode, only for development
+    debug : True # Debug mode, only for development
     request_timeout : 2.0 # seconds
     base_url : False # Set custom base_url. Possible values: False or "https://your.custom.host/location/"
     themes_path : "" # Custom ui themes path
     engine : openstreetmap
     shortcut : osm
 
-  - name : piratebay
-    engine : piratebay
-    shortcut : tpb
+#  - name : piratebay
+#    engine : piratebay
+#    shortcut : tpb
 
   - name : soundcloud
     engine : soundcloud