frontend BUGFIX select new active session when the currently active session is closed
diff --git a/frontend/config/config.component.ts b/frontend/config/config.component.ts
index 6b60a12..b8cc575 100644
--- a/frontend/config/config.component.ts
+++ b/frontend/config/config.component.ts
@@ -36,6 +36,7 @@
                 if (!this.sessionsService.activeSession) {
                     this.router.navigateByUrl('/netopeer/inventory/devices');
                 }
+                this.activeSession = this.sessionsService.getActiveSession();
             } else {
                 this.err_msg = result['error-msg'];
             }