fix: 404 page back router done.

src/components/Navbar.vue

@@ -166,6 +166,8 @@ export default {
     },
     getNavViewName() {
       let name = this.$route.name;
+
+      if(this.$route.name === 'NotFound404') return;
       this.navViewName = this.$route.matched[1].name.toUpperCase();
       this.store.filesTag = 'ALL';
       switch (this.navViewName) {