[TASK] Error message when exception is thrown

Resources/Private/Backend/Partials/Error.html

+<div class="alert alert-danger">
+  <strong>Error:</strong> <f:translate key="backend.message.error" />
+</div>
\ No newline at end of file

Resources/Private/Language/de.locallang.xlf

@@ -54,6 +54,10 @@
 			<source>Item</source>
 			<target>Eintrag</target>
 		</trans-unit>
+		<trans-unit id="backend.message.error" approved="yes">
+			<source>Something went wrong. Please reload.</source>
+			<target>Etwas ist schiefgelaufen. Bitte laden Sie die Seite neu.</target>
+		</trans-unit>
 		<trans-unit id="backend.noJobsMessage" approved="yes">
 			<source>There are no jobs that match your criteria</source>
 			<target>Es gibt keine Stellenangebote für Ihre Suchkriterien</target>

Resources/Private/Language/locallang.xlf

@@ -42,6 +42,9 @@
 		<trans-unit id="backend.list.item">
 			<source>Item</source>
 		</trans-unit>
+		<trans-unit id="backend.message.error">
+			<source>Something went wrong. Please reload.</source>
+		</trans-unit>
 		<trans-unit id="backend.noJobsMessage">
 			<source>There are no jobs that match your criteria</source>
 		</trans-unit>

Resources/Private/Templates/Backend/Index.html

@@ -9,23 +9,30 @@
 	<f:translate key="backend.jobs.header" />
 </f:section>
 <f:section name="content">
-	<f:if condition="{pages}">
+	<f:if condition="{docHeader}">
 		<f:then>
-			<f:render partial="SelectRoot" arguments="{pages: rootOptions}" />
-		</f:then>
-		<f:else>
-			<f:render partial="Filter" arguments="{filters: filters, locationOptions: locationOptions}" />
-			<f:render partial="CreateJob" arguments="{rootPageUid:rootPageUid}" />
-			<f:if condition="{jobs}">
+			<f:if condition="{pages}">
 				<f:then>
-					<f:render partial="JobList" arguments="{jobs: jobs}" />
+					<f:render partial="SelectRoot" arguments="{pages: rootOptions}" />
 				</f:then>
 				<f:else>
-					<p>
-						<f:translate key="backend.noJobsMessage" />
-					</p>
+					<f:render partial="Filter" arguments="{filters: filters, locationOptions: locationOptions}" />
+					<f:render partial="CreateJob" arguments="{rootPageUid:rootPageUid}" />
+					<f:if condition="{jobs}">
+						<f:then>
+							<f:render partial="JobList" arguments="{jobs: jobs}" />
+						</f:then>
+						<f:else>
+							<p>
+								<f:translate key="backend.noJobsMessage" />
+							</p>
+						</f:else>
+					</f:if>
 				</f:else>
 			</f:if>
+		</f:then>
+		<f:else>
+			<f:render partial="Error" />
 		</f:else>
 	</f:if>
 </f:section>