RS: deleted course in author list

2017-10-26 17:08:31,028 [ajp-nio2-8048-exec-86] ERROR Window - OLAT::ERROR ^%^ N48-E71 ^%^ org.olat.core.gui.components 
https://openolat.xyz.ch/auth/RepositorySite/0/Favorits/0
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36
**RedScreen** exception while rendering component 'table' (org.olat.core.gui.components.form.flexible.impl.elements.table.FlexiTableComponent) listener:[]<br />Message of exception: null ::_:: ::_:: ^%^ 
>>> stack of 1.cause::org.olat.core.logging.OLATRuntimeException: exception while rendering component 'table' (org.olat.core.gui.components.form.flexible.impl.elements.table.FlexiTableComponent) listener:[]<br />Message of exception: null
-> at org.olat.core.gui.components.Window.handleDirties(Window.java:1007)
   at org.olat.core.gui.components.Window.dispatchRequest(Window.java:468)
   at org.olat.core.gui.components.Window.doDispatchRequest(Window.java:242)
   at org.olat.core.gui.components.AbstractComponent.dispatchRequest(AbstractComponent.java:193)
   at org.olat.dispatcher.AuthenticatedDispatcher.processValidDispatchURI(AuthenticatedDispatcher.java:273)
   at org.olat.dispatcher.AuthenticatedDispatcher.execute(AuthenticatedDispatcher.java:190)
   at org.olat.core.servlets.OpenOLATServlet.executeUserRequest(OpenOLATServlet.java:289)
   at org.olat.core.servlets.OpenOLATServlet.doPost(OpenOLATServlet.java:232)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
   at org.olat.core.servlets.OpenOLATServlet.service(OpenOLATServlet.java:175)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
>>> stack of 2.cause::java.lang.NullPointerException: null
-> at org.olat.repository.ui.author.AuthorListController.getRowCssClass(AuthorListController.java:379)
   at org.olat.core.gui.components.form.flexible.impl.elements.table.FlexiTableClassicRenderer.renderRow(FlexiTableClassicRenderer.java:151)
   at org.olat.core.gui.components.form.flexible.impl.elements.table.AbstractFlexiTableRenderer.renderBody(AbstractFlexiTableRenderer.java:411)
   at org.olat.core.gui.components.form.flexible.impl.elements.table.AbstractFlexiTableRenderer.render(AbstractFlexiTableRenderer.java:92)
   at org.olat.core.gui.components.form.flexible.impl.elements.table.FlexiTableClassicRenderer.render(FlexiTableClassicRenderer.java:53)
   at org.olat.core.gui.render.Renderer.render(Renderer.java:236)
   at org.olat.core.gui.render.Renderer.render(Renderer.java:186)
   at org.olat.core.gui.components.Window.handleDirties(Window.java:993)
   at org.olat.core.gui.components.Window.dispatchRequest(Window.java:468)
   at org.olat.core.gui.components.Window.doDispatchRequest(Window.java:242)
   at org.olat.core.gui.components.AbstractComponent.dispatchRequest(AbstractComponent.java:193)