Hallo Thomas,
sind bei Dir folgende Einträge vorhanden:

• mind. eine Zahlungsart
• mind. eine Versandart
• mind. ein Steuersatz

Das Fehlerbild klingt, als wenn eins dieser drei Dinge nicht vorhanden wären. Sowas sollte eigentlich als Fehler ausgegeben werden. Hattest Du vorher schon eine Installation einer früheren (Beta-)Version drauf? Kannst Du bitte mal in die Datei %USERPROFILE%.fakturama2.metadata.log schauen, ob da was steht? (das ist nicht die Datei aus dem Logverzeichnis unterhalb des Arbeitsverzeichnisses)

Danke für Deine Mühe, aber es liegt eine 100% Neuinstallaion vor.
ICh kann eine neue Zahlungsart, Versandart und steuersatz erstellen, die Maske ist sichtbar, nur Neues Angebot,Rechnung, Lieferschein... bis neuer Kreditor wo es dann wieder läuft.
Die Logdatei ist umfangreich:

[size=x-small]
!SESSION 2018-02-18 14:14:42.950 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.8.0_162
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_DE
Command-line arguments: -os win32 -ws win32 -arch x86_64

This is a continuation of log file C:UsersThomas.fakturama2.metadata.bak_0.log
Created Time: 2018-02-18 14:15:45.065

!ENTRY com.sebulli.fakturama.common 4 0 2018-02-18 14:15:45.069
!MESSAGE non-unique result found for property PRODUCT_USE_DESCRIPTION
!STACK 0
javax.persistence.NonUniqueResultException: More than one result was returned from Query.getSingleResult()
at org.eclipse.persistence.internal.jpa.QueryImpl.throwNonUniqueResultException(QueryImpl.java:987)
at org.eclipse.persistence.internal.jpa.QueryImpl.getSingleResult(QueryImpl.java:536)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.getSingleResult(EJBQueryImpl.java:402)
at com.sebulli.fakturama.dao.PropertiesDAO.findPropertyValue(PropertiesDAO.java:68)
at com.sebulli.fakturama.dao.PropertiesDAO.findPropertyValue(PropertiesDAO.java:49)
at com.sebulli.fakturama.preferences.PreferencesInDatabase.loadPreferenceValue(PreferencesInDatabase.java:60)
at com.sebulli.fakturama.preferences.PreferencesInDatabase.syncWithPreferencesFromDatabase(PreferencesInDatabase.java:91)
at com.sebulli.fakturama.preferences.ProductPreferencePage.syncWithPreferencesFromDatabase(ProductPreferencePage.java:107)
at com.sebulli.fakturama.preferences.ProductPreferencePage.loadOrSaveUserValuesFromDB(ProductPreferencePage.java:121)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:305)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:220)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:90)
at com.sebulli.fakturama.preferences.PreferencesInDatabase.loadOrSavePreferencesFromOrInDatabase(PreferencesInDatabase.java:120)
at com.sebulli.fakturama.preferences.PreferencesInDatabase.loadPreferencesFromDatabase(PreferencesInDatabase.java:129)
at com.sebulli.fakturama.LifecycleManager.fillWithInitialData(LifecycleManager.java:323)
at com.sebulli.fakturama.LifecycleManager.processAdditions(LifecycleManager.java:454)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:305)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:233)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:107)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createE4Workbench(E4Application.java:274)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application.start(E4Application.java:149)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)

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.
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.

!ENTRY org.eclipse.e4.ui.workbench 1 0 2018-02-18 14:16:48.739
!MESSAGE Saving NatTable state to fakturamaviews.properties

!ENTRY org.eclipse.e4.ui.workbench 4 0 2018-02-18 14:16:50.601
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.eclipse.e4.core.di.InjectionException: org.eclipse.e4.core.di.InjectionException: javax.persistence.NonUniqueResultException: More than one result was returned from Query.getSingleResult()
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:65)
at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:990)
at org.eclipse.e4.core.internal.di.InjectorImpl.disposed(InjectorImpl.java:450)
at org.eclipse.e4.core.internal.di.Requestor.disposed(Requestor.java:156)
at org.eclipse.e4.core.internal.contexts.ContextObjectSupplier$ContextInjectionListener.update(ContextObjectSupplier.java:78)
at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:111)
at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.handleInvalid(TrackableComputationExt.java:74)
at org.eclipse.e4.core.internal.contexts.EclipseContext.dispose(EclipseContext.java:178)
at org.eclipse.e4.core.internal.contexts.EclipseContext.dispose(EclipseContext.java:163)
at org.eclipse.e4.core.internal.contexts.osgi.EclipseContextOSGi.dispose(EclipseContextOSGi.java:99)
at org.eclipse.e4.core.internal.contexts.osgi.EclipseContextOSGi.bundleChanged(EclipseContextOSGi.java:141)
at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:908)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:213)
at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:120)
at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:112)
at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:168)
at org.eclipse.osgi.container.Module.publishEvent(Module.java:476)
at org.eclipse.osgi.container.Module.doStop(Module.java:634)
at org.eclipse.osgi.container.Module.stop(Module.java:498)
at org.eclipse.osgi.container.SystemModule.stop(SystemModule.java:202)
at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle$EquinoxSystemModule$1.run(EquinoxBundle.java:165)
at java.lang.Thread.run(Unknown Source)
Caused by: org.eclipse.e4.core.di.InjectionException: javax.persistence.NonUniqueResultException: More than one result was returned from Query.getSingleResult()
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:65)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:305)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:220)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:90)
at com.sebulli.fakturama.preferences.PreferencesInDatabase.loadOrSavePreferencesFromOrInDatabase(PreferencesInDatabase.java:120)
at com.sebulli.fakturama.preferences.PreferencesInDatabase.savePreferencesInDatabase(PreferencesInDatabase.java:137)
at com.sebulli.fakturama.LifecycleManager.postWindowClose(LifecycleManager.java:386)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
... 23 more
Caused by: javax.persistence.NonUniqueResultException: More than one result was returned from Query.getSingleResult()
at org.eclipse.persistence.internal.jpa.QueryImpl.throwNonUniqueResultException(QueryImpl.java:987)
at org.eclipse.persistence.internal.jpa.QueryImpl.getSingleResult(QueryImpl.java:536)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.getSingleResult(EJBQueryImpl.java:402)
at com.sebulli.fakturama.dao.AbstractDAO.findByName(AbstractDAO.java:225)
at com.sebulli.fakturama.dao.PropertiesDAO.setProperty(PropertiesDAO.java:87)
at com.sebulli.fakturama.preferences.PreferencesInDatabase.savePreferenceValue(PreferencesInDatabase.java:76)
at com.sebulli.fakturama.preferences.PreferencesInDatabase.syncWithPreferencesFromDatabase(PreferencesInDatabase.java:89)
at com.sebulli.fakturama.preferences.ContactFormatPreferencePage.syncWithPreferencesFromDatabase(ContactFormatPreferencePage.java:99)
at com.sebulli.fakturama.preferences.ContactFormatPreferencePage.loadOrSaveUserValuesFromDB(ContactFormatPreferencePage.java:120)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
... 34 more

in den Einsellungen ist irgendwas doppelt ==> "More than one result was returned from Query.getSingleResult()" sagt diese Zeile. Das habe ich in der kommenden Version schon mal abgefangen, es wäre aber sicher interessant, was da doppelt ist wenn Du die Anwendung komplett neu angelegt hast.

gefunden, es waren Steuer und Versandart nicht vor dem Datenimport festgelegt, danke für die Hilfe Euch allen

Ich habe das selbe Problem ...

Habe neben der Versionsnummer zeitgleich den Rechner gewechselt.
Das alte 1.69 Verzeichnis auf den neuen Rechner kopiert. Jawa geupdatet, 2.01 Fakturama neu aufgesetzt.
Alles da... aber das Rechnungsfeld bleibt grau.

Selbst mehrfaches beherztes Treten gegen den Rechner brachte keine Abhilfe 🙂

ahh. weise ich fakturama2 ein neues jungfräuliches Arbeitsverzeichnis zu, funktioniert alles...

hab's jetzt , also (:D