Trying to create a changes will timeout, says try again later

[tony@…]

What steps will reproduce the problem?

1. Any attempt to upload from JOSM

What is the expected result?

What happens instead?

Please provide any additional information below. Attach a screenshot if possible.

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-05-02 10:23:17 +0200 (Mon, 02 May 2016)
Build-Date:2016-05-03 01:31:45
Revision:10168
Relative:URL: ^/trunk

Identification: JOSM/1.5 (10168 en) Mac OS X 10.11.4
Memory Usage: 276 MB / 1820 MB (51 MB allocated, but free)
Java version: 1.8.0_91-b14, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
VM arguments: [-Djava.security.policy=file:<java.home>/lib/security/javaws.policy, -DtrustProxy=true, -Djnlpx.home=<java.home>/bin, -Djava.security.manager, -Djnlpx.origFilenameArg=${HOME}/Library/Application Support/Oracle/Java/Deployment/cache/6.0/56/1ee8cfb8-3e2b3c37, -Djnlpx.remove=false, -Dsun.awt.warmup=true, -Djava.util.Arrays.useLegacyMergeSort=true, -Dmacosx.jnlpx.dock.name=JOSM, -Dmacosx.jnlpx.dock.icon=${HOME}/Library/Application Support/Oracle/Java/Deployment/cache/6.0/16/47ee53d0-56338189.icns, -Djnlp.application.href=https://josm.openstreetmap.de/download/josm.jnlp , -Djnlpx.jvm="<java.home>/bin/java", -Djnlpx.vmargs=LURqYXZhLnV0aWwuQXJyYXlzLnVzZUxlZ2FjeU1lcmdlU29ydD10cnVlAC1Eam5scC5hcHBsaWNhdGlvbi5ocmVmPWh0dHBzOi8vam9zbS5vcGVuc3RyZWV0bWFwLmRlL2Rvd25sb2FkL2pvc20uam5scCAA]

Plugins:
- FastDraw (31895)
- buildings_tools (31895)
- cadastre-fr (32060)
- ejml (31895)
- geotools (31895)
- jts (31772)
- utilsplugin2 (32018)

[Klumbumbus]

The OSM database was in read only mode yesterday today because of server maintenance. Maybe you tried during this time?