Error code -46 indicates a invalid configuration of the OPC UA Server App. I forwarded the configuration file of your app to the development team of the OPC UA Server App and will let you know, when I got feedback from them.
In the meanwhile, I would recommend you to delete the configuration of the OPC UA Server and reboot the ctrlX CORE and check if the error is not longer present. You can do that by creating a .zip archive of the configuration files. Download these files, unzip the archive, delete the folder "opcuaserver". Afterwards zip the folder again and upload it. Then you set this configuration to active.
unfortunately there is a bug in server, that you can see the detailed diagnosis message regarding failed configuration. This will be will be fixed in the upcoming release of 1.20.
In fixed version you will see the following messages:
Thus you see the configuration was failed because of wrong endpoint configuration.
Concret the issue in configuration are the two "4". Removing this will help:
Do you have a idea, how you get this configuration. Did you directly modify the configuration file "opcua_appconfig.cfg"? If not, do you remeber what you did. Thus we can reproduce to fix the issue.