I installed server 5.0.2-242 on Windows and all worked fine. After a few hours, now I get the “no mapping” error when I start the server. I uninstalled and reinstalled, but the same error shows up. Below is the log. Any idea on what is causing the error?

Thanks,
Ray
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10/05/2020 13:52:19.322 INFO [JavaFX Application Thread] com.prosysopc.ua.app.simserver.SimulationServerApplication [] – Prosys OPC UA Simulation Server v.5.0.2-242 is starting
10/05/2020 13:52:20.461 INFO [JavaFX Application Thread] com.prosysopc.ua.app.simserver.SimulationServerApplication [] – Loaded font:Font[name=Roboto, family=Roboto, style=Regular, size=12.0]
10/05/2020 13:52:20.469 INFO [JavaFX Application Thread] com.prosysopc.ua.app.simserver.SimulationServerApplication [] – Loaded font:Font[name=Roboto Bold, family=Roboto, style=Bold, size=12.0]
10/05/2020 13:52:20.475 INFO [JavaFX Application Thread] com.prosysopc.ua.app.simserver.SimulationServerApplication [] – Loaded font:Font[name=Roboto Italic, family=Roboto, style=Italic, size=12.0]
10/05/2020 13:52:20.481 INFO [JavaFX Application Thread] com.prosysopc.ua.app.simserver.SimulationServerApplication [] – Loaded font:Font[name=Roboto Bold Italic, family=Roboto, style=Bold Italic, size=12.0]
10/05/2020 13:52:21.788 INFO [JavaFX Application Thread] com.prosysopc.ua.app.simserver.settings.a [] – Loaded application settings from C:\Users\zolfor\.prosysopc\prosys-opc-ua-simulation-server\default.sim.
10/05/2020 13:52:21.794 INFO [JavaFX Application Thread] com.prosysopc.ua.app.simserver.settings.b [] – Opening project file at C:\Users\zolfor\.prosysopc\prosys-opc-ua-simulation-server\default.simconf.
10/05/2020 13:52:21.841 INFO [JavaFX Application Thread] com.prosysopc.ua.app.simserver.settings.c [] – Project settings loaded.
10/05/2020 13:52:21.841 INFO [JavaFX Application Thread] com.prosysopc.ua.UaApplication [] – Prosys OPC UA SDK for Java v4.4.0-1240
10/05/2020 13:52:21.842 INFO [JavaFX Application Thread] com.prosysopc.ua.UaApplication [] – (c) Prosys OPC Ltd.
10/05/2020 13:52:23.217 INFO [InitThread-1] com.prosysopc.ua.app.simserver.database.a [] – Loading database…
10/05/2020 13:52:23.222 INFO [InitThread-2] com.prosysopc.ua.app.simserver.license.b [] – Searching for license file at C:\Users\zolfor\.prosysopc\prosys-opc-ua-simulation-server\license.lic.
10/05/2020 13:52:23.223 INFO [InitThread-3] com.prosysopc.ua.app.simserver.server.c [] – Setting up server…
10/05/2020 13:52:23.223 INFO [InitThread-2] com.prosysopc.ua.app.simserver.license.b [] – No license file found, using Free license.
10/05/2020 13:52:23.993 INFO [InitThread-1] com.prosysopc.ua.app.simserver.database.a [] – Database loaded.
10/05/2020 13:52:27.767 INFO [InitThread-3] com.prosysopc.ua.f [] – Reading application certificate from C:\Users\zolfor\.prosysopc\prosys-opc-ua-simulation-server\PKI\CA\private\SimulationServer@USENZOLFORL3C_2048.der
10/05/2020 13:52:27.776 INFO [InitThread-3] com.prosysopc.ua.f [] – Reading private key from keystore C:\Users\zolfor\.prosysopc\prosys-opc-ua-simulation-server\PKI\CA\private\SimulationServer@USENZOLFORL3C_2048.pem
10/05/2020 13:52:28.091 INFO [InitThread-3] com.prosysopc.ua.f [] – Issuer certificate loaded from C:\Users\zolfor\.prosysopc\prosys-opc-ua-simulation-server\PKI\CA\private\SimulationServerCA.der
10/05/2020 13:52:28.093 INFO [InitThread-3] com.prosysopc.ua.f [] – Issuer private key loaded from C:\Users\zolfor\.prosysopc\prosys-opc-ua-simulation-server\PKI\CA\private\SimulationServerCA.pem
10/05/2020 13:52:28.096 INFO [InitThread-3] com.prosysopc.ua.f [] – HTTPS certificate loaded from C:\Users\zolfor\.prosysopc\prosys-opc-ua-simulation-server\PKI\CA\private\SimulationServer@USENZOLFORL3C_https.der
10/05/2020 13:52:28.108 INFO [InitThread-3] com.prosysopc.ua.f [] – HTTPS private key loaded from C:\Users\zolfor\.prosysopc\prosys-opc-ua-simulation-server\PKI\CA\private\SimulationServer@USENZOLFORL3C_https.pem
10/05/2020 13:52:28.200 INFO [InitThread-3] com.prosysopc.ua.server.NodeManagerTable [] – Loading model from jar:file:/C:/Program%20Files/ProsysOPC/Prosys%20OPC%20UA%20Simulation%20Server/lib/ui-javafx-5.0.2-242.jar!/com/prosysopc/ua/types/opcua/server/Opc.Ua.NodeSet2.xml
10/05/2020 13:52:28.994 INFO [InitThread-3] com.prosysopc.ua.stack.utils.h [] – Using CryptoProvider com.prosysopc.ua.stack.transport.security.c
10/05/2020 13:52:29.510 INFO [InitThread-3] com.prosysopc.ua.app.simserver.server.c [] – Server set up completed.
10/05/2020 13:52:29.511 INFO [InitThread-3] com.prosysopc.ua.app.simserver.server.c [] – Setting up server took 6287 ms.
10/05/2020 13:52:29.512 INFO [InitThread-4] com.prosysopc.ua.app.simserver.ui.SimulationServerUI [] – Loading initial views…
10/05/2020 13:52:29.574 INFO [InitThread-4] com.prosysopc.ua.app.simserver.ui.SimulationServerUI [] – Initial views loaded.
10/05/2020 13:52:29.575 INFO [InitThread-5] com.prosysopc.ua.app.simserver.server.namespaces.d [] – Starting namespace manager…
10/05/2020 13:52:29.625 INFO [InitThread-5] com.prosysopc.ua.app.simserver.server.namespaces.d [] – Namespace manager started.
10/05/2020 13:52:29.626 INFO [InitThread-6] com.prosysopc.ua.app.simserver.simulation.i [] – Starting simulator…10/05/2020 13:52:29.626 INFO [InitThread-6] com.prosysopc.ua.app.simserver.simulation.c [] – Loading simulation configuration…
10/05/2020 13:52:29.630 ERROR [InitThread-6] com.prosysopc.ua.app.simserver.e [] – Could not start simulator.
10/05/2020 13:52:29.630 ERROR [InitThread-6] com.prosysopc.ua.app.simserver.SimulationServerApplication [] – Could not start application.
java.util.concurrent.CompletionException: java.lang.RuntimeException: No mapping found for namespace uri:http://www.prosysopc.com/OPCUA/SimulationServer/
at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314) [?:?]
at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:319) [?:?]
at java.util.concurrent.CompletableFuture$UniRun.tryFire(CompletableFuture.java:787) [?:?]
at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) [?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.lang.RuntimeException: No mapping found for namespace uri:http://www.prosysopc.com/OPCUA/SimulationServer/
at com.prosysopc.ua.app.simserver.e.cz(SourceFile:106) ~[ui-javafx-5.0.2-242.jar:5.0.2-242]
at com.prosysopc.ua.app.simserver.SimulationServerApplication.cn(SourceFile:127) ~[ui-javafx-5.0.2-242.jar:5.0.2-242]
at java.util.concurrent.CompletableFuture$UniRun.tryFire(CompletableFuture.java:783) ~[?:?]
… 4 more