FIX: logout for SimpleKITUsers

frontend/src/components/Navbar.vue

@@ -87,7 +87,12 @@
         },
         methods: {
             async logout() {
-                await LoginService.logout(this.$store.state.token.pk)
+                if(this.$store.token == null) {
+                    await LoginService.logout(null)
+                }
+                else {
+                    await LoginService.logout(this.$store.state.token.pk || null)
+                }
                 this.$store.commit('logout')
                 await this.$router.push('/login')
             },
@@ -145,4 +150,4 @@
     .search-button {
         z-index: 1;
     }
-</style>
\ No newline at end of file
+</style>